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{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"\u0110\u01b0\u1eddng tr\u00f2n t\u00e2m O, b\u00e1n k\u00ednh R l\u00e0 h\u00ecnh g\u1ed3m c\u00e1c \u0111i\u1ec3m c\u00e1ch O m\u1ed9t kho\u1ea3ng b\u1eb1ng R, k\u00ed hi\u1ec7u (O; R). \u0110\u00fang hay sai?","select":["A. \u0110\u00fang","B. Sai"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/>\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: A. \u0110\u00fang<\/span><\/span> <br\/>","column":2}]}],"id_ques":2201},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"H\u00ecnh tr\u00f2n l\u00e0 h\u00ecnh g\u1ed3m c\u00e1c \u0111i\u1ec3m n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n v\u00e0 c\u00e1c \u0111i\u1ec3m n\u1eb1m b\u00ean trong \u0111\u01b0\u1eddng tr\u00f2n \u0111\u00f3. \u0110\u00fang hay sai?","select":["A. \u0110\u00fang","B. Sai"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/>\u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0: A. \u0110\u00fang<\/span><\/span> <br\/>","column":2}]}],"id_ques":2202},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Tam gi\u00e1c ABC l\u00e0 h\u00ecnh g\u1ed3m ba \u0111o\u1ea1n th\u1eb3ng AB, BC, CA khi ba \u0111i\u1ec3m A, B, C th\u1eb3ng h\u00e0ng. \u0110\u00fang hay sai?","select":["A. \u0110\u00fang","B. Sai"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/>Theo \u0111\u1ecbnh ngh\u0129a tam gi\u00e1c ta c\u00f3:<br\/>Tam gi\u00e1c ABC l\u00e0 h\u00ecnh g\u1ed3m ba \u0111o\u1ea1n th\u1eb3ng AB, BC, CA khi ba \u0111i\u1ec3m A, B, C kh\u00f4ng th\u1eb3ng h\u00e0ng<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n: B. Sai<\/span><\/span> <br\/>","column":2}]}],"id_ques":2203},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Tam gi\u00e1c ABC c\u00f3 ba \u0111i\u1ec3m A, B, C l\u00e0 ba \u0111\u1ec9nh c\u1ee7a tam gi\u00e1c. \u0110\u00fang hay sai?","select":["A. \u0110\u00fang","B. Sai"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/>Theo \u0111\u1ecbnh ngh\u0129a tam gi\u00e1c ABC ta c\u00f3:<br\/>+ Tam gi\u00e1c ABC l\u00e0 h\u00ecnh g\u1ed3m ba \u0111o\u1ea1n th\u1eb3ng AB, BC, CA khi ba \u0111i\u1ec3m A, B, C kh\u00f4ng th\u1eb3ng h\u00e0ng<br\/>+ Ba \u0111i\u1ec3m A, B, C l\u00e0 ba \u0111\u1ec9nh c\u1ee7a tam gi\u00e1c<\/b><br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n: A. \u0110\u00fang<\/span><\/span> <br\/>","column":2}]}],"id_ques":2204},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"\u0110o\u1ea1n th\u1eb3ng n\u1ed1i hai m\u00fat c\u1ee7a cung l\u00e0 d\u00e2y cung (g\u1ecdi t\u1eaft l\u00e0 d\u00e2y). \u0110\u00fang hay sai?","select":["A. \u0110\u00fang","B. Sai"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/>Theo \u0111\u1ecbnh ngh\u0129a d\u00e2y cung ta c\u00f3:<br\/>\u0110o\u1ea1n th\u1eb3ng n\u1ed1i hai m\u00fat c\u1ee7a cung l\u00e0 d\u00e2y cung (g\u1ecdi t\u1eaft l\u00e0 d\u00e2y)<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n: A. \u0110\u00fang<\/span><\/span> <br\/>","column":2}]}],"id_ques":2205},{"time":9,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 ho\u1eb7c ch\u1eef th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["2"],["C"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"V\u1ebd tam gi\u00e1c ABC, bi\u1ebft ba c\u1ea1nh BC = 4cm, AB = 2cm, AC = 3cm.<br\/>C\u00e1ch v\u1ebd:<\/b><br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng BC = 4cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m B, b\u00e1n k\u00ednh _input_ cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m _input_, b\u00e1n k\u00ednh 3cm.<br\/>+ L\u1ea5y m\u1ed9t giao \u0111i\u1ec3m c\u1ee7a hai cung tr\u00ean, g\u1ecdi giao \u0111i\u1ec3m \u0111\u00f3 l\u00e0 A<br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng AB, AC, ta c\u00f3 $\\triangle$ABC.<\/span>","hint":"","explain":"B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D101.png' \/><\/center>C\u00e1ch v\u1ebd:<\/b><br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng BC = 4cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m B, b\u00e1n k\u00ednh 2cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m C, b\u00e1n k\u00ednh 3cm.<br\/>+ L\u1ea5y m\u1ed9t giao \u0111i\u1ec3m c\u1ee7a hai cung tr\u00ean, g\u1ecdi giao \u0111i\u1ec3m \u0111\u00f3 l\u00e0 A<br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng AB, AC, ta c\u00f3 $\\triangle$ABC.<br\/>V\u1eady s\u1ed1 ho\u1eb7c ch\u1eef c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi l\u00e0: 2; C<\/span><\/span> <\/span> <br\/> "}]}],"id_ques":2206},{"time":9,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 ho\u1eb7c ch\u1eef th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["3"],["C"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"V\u1ebd tam gi\u00e1c ABC, bi\u1ebft ba c\u1ea1nh BC = 5cm, AB = 3cm, AC = 4cm.<br\/>C\u00e1ch v\u1ebd:<\/b><br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng BC = 5cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m B, b\u00e1n k\u00ednh _input_ cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m _input_, b\u00e1n k\u00ednh 4cm.<br\/>+ L\u1ea5y m\u1ed9t giao \u0111i\u1ec3m c\u1ee7a hai cung tr\u00ean, g\u1ecdi giao \u0111i\u1ec3m \u0111\u00f3 l\u00e0 A<br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng AB, AC, ta c\u00f3 $\\triangle$ABC.<\/span>","hint":"","explain":"B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_102.png' \/><\/center>C\u00e1ch v\u1ebd:<\/b><br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng BC = 5cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m B, b\u00e1n k\u00ednh 3cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m C, b\u00e1n k\u00ednh 4cm.<br\/>+ L\u1ea5y m\u1ed9t giao \u0111i\u1ec3m c\u1ee7a hai cung tr\u00ean, g\u1ecdi giao \u0111i\u1ec3m \u0111\u00f3 l\u00e0 A<br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng AB, AC, ta c\u00f3 $\\triangle$ABC.<br\/>V\u1eady s\u1ed1 ho\u1eb7c ch\u1eef c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi l\u00e0: 3; C<\/span><\/span> <\/span> <br\/> "}]}],"id_ques":2207},{"time":9,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 ho\u1eb7c ch\u1eef th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["C"],["4"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"V\u1ebd tam gi\u00e1c ABC, bi\u1ebft ba c\u1ea1nh BC = 7cm, AB = 4cm, AC = 5cm.<br\/>C\u00e1ch v\u1ebd:<\/b><br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng BC = 7cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m _input_, b\u00e1n k\u00ednh 5cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m B, b\u00e1n k\u00ednh _input_cm.<br\/>+ L\u1ea5y m\u1ed9t giao \u0111i\u1ec3m c\u1ee7a hai cung tr\u00ean, g\u1ecdi giao \u0111i\u1ec3m \u0111\u00f3 l\u00e0 A<br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng AB, AC, ta c\u00f3 $\\triangle$ABC.<\/span>","hint":"","explain":"B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D106.png' \/><\/center>C\u00e1ch v\u1ebd:<\/b><br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng BC = 7cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m C, b\u00e1n k\u00ednh 5cm<br\/>+ V\u1ebd cung tr\u00f2n t\u00e2m B, b\u00e1n k\u00ednh 4cm.<br\/>+ L\u1ea5y m\u1ed9t giao \u0111i\u1ec3m c\u1ee7a hai cung tr\u00ean, g\u1ecdi giao \u0111i\u1ec3m \u0111\u00f3 l\u00e0 A<br\/>+ V\u1ebd \u0111o\u1ea1n th\u1eb3ng AB, AC, ta c\u00f3 $\\triangle$ABC.<br\/>V\u1eady s\u1ed1 ho\u1eb7c ch\u1eef c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi l\u00e0: C; 4<\/span><\/span> <\/span> <br\/> "}]}],"id_ques":2208},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D107.png' \/><\/center> Cho h\u00ecnh v\u1ebd nh\u01b0 tr\u00ean, bi\u1ebft hai \u0111\u01b0\u1eddng tr\u00f2n (A; 3cm) v\u00e0 (B; 4cm) c\u1eaft nhau t\u1ea1i M, N. AB = 6cm. \u0110\u01b0\u1eddng tr\u00f2n t\u00e2m A, B l\u1ea7n l\u01b0\u1ee3t c\u1eaft \u0111o\u1ea1n th\u1eb3ng AB t\u1ea1i Q, P. T\u00ednh MA, AP","select":["A. MA = 4cm; AP = 2cm","B. MA = 3cm; AP = 1cm","C. MA = 3cm; AP = 2cm","D. MA = 3cm; AP = 4cm"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D107.png' \/><\/center> Ta c\u00f3 hai \u0111\u01b0\u1eddng tr\u00f2n (A; 3cm) v\u00e0 (B; 4cm) c\u1eaft nhau t\u1ea1i M, N<br\/>Do \u0111\u00f3 \u0111i\u1ec3m M v\u00e0 \u0111i\u1ec3m N \u0111\u1ec1u n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (A; 3cm) v\u00e0 (B; 4cm)<br\/>+ \u0110i\u1ec3m M n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (A; 3cm) suy ra MA = 3cm<\/b><br\/>\u0110\u01b0\u1eddng tr\u00f2n t\u00e2m A, B l\u1ea7n l\u01b0\u1ee3t c\u1eaft \u0111o\u1ea1n th\u1eb3ng AB t\u1ea1i Q, P<br\/>Do \u0111\u00f3: <br\/>+ \u0110i\u1ec3m Q n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (A; 3cm) suy ra AQ = 3cm<br\/>+ \u0110i\u1ec3m P n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (B; 4cm) suy ra BP= 4cm<br\/>L\u1ea1i c\u00f3: AQ + BP = (AP + PQ) + (BQ + PQ) <br\/>Hay 3cm + 4cm = AP + PQ + BQ + PQ<br\/>(AP + PQ + BQ) + PQ = 7cm<br\/>AB + PQ = 7cm<br\/>PQ = 7cm - AB = 7cm - 6cm = 1cm<br\/>\u0110i\u1ec3m P n\u1eb1m gi\u1eefa hai \u0111i\u1ec3m A v\u00e0 Q n\u00ean AP + PQ = AQ<br\/>Thay PQ = 1cm; AQ = 3cm ta \u0111\u01b0\u1ee3c:<br\/>AP + 1cm = 3cm<br\/>AP = 4cm - 1cm = 3cm<\/b><br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C. MA = 3cm; AP = 2cm<\/span><br\/> <\/span> <br\/><\/span>","column":2}]}],"id_ques":2209},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n sai","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Cho hai \u0111\u01b0\u1eddng tr\u00f2n (O; 4cm) v\u00e0 (M; 4cm) c\u1eaft nhau \u1edf A v\u00e0 B v\u00e0 MO > 4cm. H\u00e3y ch\u1ecdn c\u00e2u sai:","select":["A. \u0110i\u1ec3m O n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (M; 4cm)","B. \u0110i\u1ec3m A n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (M; 4cm)","C. \u0110i\u1ec3m B n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; 4cm)","D. \u0110i\u1ec3m B n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (M; 4cm)"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D108.png' \/><\/center> G\u1ecdi P l\u00e0 giao \u0111i\u1ec3m c\u1ee7a (M; 4cm) v\u00e0 MO<br\/>Ta c\u00f3:<br\/>Hai \u0111\u01b0\u1eddng tr\u00f2n (O; 4cm) v\u00e0 (M; 4cm) c\u1eaft nhau \u1edf A v\u00e0 B<br\/>Do \u0111\u00f3 \u0111i\u1ec3m A v\u00e0 B n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; 4cm) v\u00e0 (M; 4cm)<br\/>Suy ra<br\/>+ \u0110i\u1ec3m A n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; 4cm) v\u00e0 (M; 4m)<br\/>+ \u0110i\u1ec3m B n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; 4cm) v\u00e0 (M; 4cm)<br\/>MO > MP (hay 4cm) n\u00ean \u0111i\u1ec3m O n\u1eb1m ngo\u00e0i \u0111\u01b0\u1eddng tr\u00f2n (M; 4cm)<br\/>V\u1eady \u0111\u00e1p \u00e1n sai l\u00e0:A. \u0110i\u1ec3m O n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (M; 4cm)<\/span> <\/span> <br\/><\/span>","column":2}]}],"id_ques":2210},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n sai","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"Cho hai \u0111\u01b0\u1eddng tr\u00f2n (O; 6cm) v\u00e0 (M; 6cm) c\u1eaft nhau \u1edf A v\u00e0 B v\u00e0 MO > 6cm. H\u00e3y ch\u1ecdn c\u00e2u sai:","select":["A. \u0110i\u1ec3m O n\u1eb1m trong \u0111\u01b0\u1eddng tr\u00f2n (M; 6cm)","B. \u0110i\u1ec3m A n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; 6cm)","C. \u0110i\u1ec3m A n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (M; 6cm)","D. \u0110i\u1ec3m B n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (M; 6cm)"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D108.png' \/><\/center> G\u1ecdi P l\u00e0 giao \u0111i\u1ec3m c\u1ee7a (M; 6cm) v\u00e0 MO<br\/>Ta c\u00f3:<br\/>Hai \u0111\u01b0\u1eddng tr\u00f2n (O; 6cm) v\u00e0 (M; 6cm) c\u1eaft nhau \u1edf A v\u00e0 B<br\/>Do \u0111\u00f3 \u0111i\u1ec3m A v\u00e0 B n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; 6cm) v\u00e0 (M; 6cm)<br\/>Suy ra<br\/>+ \u0110i\u1ec3m A n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; 6cm) v\u00e0 (M; 6m)<br\/>+ \u0110i\u1ec3m B n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; 6cm) v\u00e0 (M; 6cm)<br\/>MO > MP (hay 6cm) n\u00ean \u0111i\u1ec3m O n\u1eb1m ngo\u00e0i \u0111\u01b0\u1eddng tr\u00f2n (M; 6cm)<br\/>V\u1eady \u0111\u00e1p \u00e1n sai l\u00e0:A. \u0110i\u1ec3m O n\u1eb1m trong \u0111\u01b0\u1eddng tr\u00f2n (M; 6cm)<\/span> <\/span> <br\/><\/span>","column":2}]}],"id_ques":2211},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t \u0111\u1ec3 \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"H\u00ecnh t\u1ea1o th\u00e0nh b\u1edfi ...................... \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 tam gi\u00e1c ABC","select":["A. ba \u0111i\u1ec3m A, B, C","B. ba \u0111o\u1ea1n th\u1eb3ng AB, BC, AC","C. ba \u0111i\u1ec3m A, B, C kh\u00f4ng th\u1eb3ng h\u00e0ng","D. ba \u0111o\u1ea1n th\u1eb3ng AB, BC, CA khi ba \u0111i\u1ec3m A, B, C kh\u00f4ng th\u1eb3ng h\u00e0ng"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/>Theo \u0111\u1ecbnh ngh\u0129a tam gi\u00e1c ABC ta c\u00f3:<br\/>Tam gi\u00e1c ABC l\u00e0 h\u00ecnh g\u1ed3m ba \u0111o\u1ea1n th\u1eb3ng AB, BC, CA khi ba \u0111i\u1ec3m A, B, C kh\u00f4ng th\u1eb3ng h\u00e0ng<br\/>Hay h\u00ecnh t\u1ea1o th\u00e0nh b\u1edfi ba \u0111o\u1ea1n th\u1eb3ng AB, BC, CA khi ba \u0111i\u1ec3m A, B, C kh\u00f4ng th\u1eb3ng h\u00e0ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 tam gi\u00e1c ABC<\/b><br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D. ba \u0111o\u1ea1n th\u1eb3ng AB, BC, CA khi ba \u0111i\u1ec3m A, B, C kh\u00f4ng th\u1eb3ng h\u00e0ng<\/span><\/span> <br\/>","column":1}]}],"id_ques":2212},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t \u0111\u1ec3 \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Tam gi\u00e1c MNP l\u00e0 h\u00ecnh .............................","select":["A. g\u1ed3m ba \u0111i\u1ec3m M, N, P","B. g\u1ed3m ba \u0111o\u1ea1n th\u1eb3ng MN, NP, PM","C. g\u1ed3m ba \u0111i\u1ec3m M, N, P kh\u00f4ng th\u1eb3ng h\u00e0ng","D. g\u1ed3m ba \u0111o\u1ea1n th\u1eb3ng MN, NP, PM khi ba \u0111i\u1ec3m M, N, P kh\u00f4ng th\u1eb3ng h\u00e0ng"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/>Theo \u0111\u1ecbnh ngh\u0129a tam gi\u00e1c ta c\u00f3:<br\/>Tam gi\u00e1c MNP l\u00e0 h\u00ecnh g\u1ed3m ba \u0111o\u1ea1n th\u1eb3ng MN, NP, PM khi ba \u0111i\u1ec3m M, N, P kh\u00f4ng th\u1eb3ng h\u00e0ng<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D. g\u1ed3m ba \u0111o\u1ea1n th\u1eb3ng MN, NP, PM khi ba \u0111i\u1ec3m M, N, P kh\u00f4ng th\u1eb3ng h\u00e0ng<\/span><\/span> <br\/>","column":1}]}],"id_ques":2213},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t \u0111\u1ec3 \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D112.png' \/><\/center>Cho \u0111\u01b0\u1eddng tr\u00f2n t\u00e2m O b\u00e1n k\u00ednh R, v\u00e0 \u0111i\u1ec3m Q nh\u01b0 h\u00ecnh v\u1ebd. N\u1ed1i O v\u1edbi Q. So s\u00e1nh OQ v\u00e0 R, v\u00e0 cho bi\u1ebft \u0111i\u1ec3m Q n\u1eb1m \u1edf v\u1ecb tr\u00ed n\u00e0o so v\u1edbi \u0111\u01b0\u1eddng tr\u00f2n (O; R)","select":["A. OQ < R, \u0111i\u1ec3m Q n\u1eb1m b\u00ean tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; R)","B. OQ = R, \u0111i\u1ec3m Q n\u1eb1m b\u00ean tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; R)","C. OQ < R, \u0111i\u1ec3m Q n\u1eb1m b\u00ean trong \u0111\u01b0\u1eddng tr\u00f2n (O; R)","D. OQ > R, \u0111i\u1ec3m Q n\u1eb1m b\u00ean ngo\u00e0i \u0111\u01b0\u1eddng tr\u00f2n (O; R)"],"hint":"","explain":" H\u01b0\u1edbng d\u1eabn:<\/span><br\/>+ K\u00e9o d\u00e0i OQ, so s\u00e1nh OQ v\u1edbi R<br\/>+ X\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u1ee7a \u0111i\u1ec3m Q so v\u1edbi \u0111\u01b0\u1eddng tr\u00f2n (O; R)<br\/>N\u1ebfu OQ < R th\u00ec \u0111i\u1ec3m Q n\u1eb1m b\u00ean trong \u0111\u01b0\u1eddng tr\u00f2n (O; R)<br\/>N\u1ebfu OQ = R th\u00ec \u0111i\u1ec3m Q n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; R)<br\/>N\u1ebfu OQ > R th\u00ec \u0111i\u1ec3m Q n\u1eb1m b\u00ean ngo\u00e0i \u0111\u01b0\u1eddng tr\u00f2n (O; R)<\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D113.png' \/><\/center> N\u1ed1i O v\u1edbi Q. \u0110o\u1ea1n OQ c\u1eaft \u0111\u01b0\u1eddng tr\u00f2n (O; R) t\u1ea1i \u0111i\u1ec3m P<br\/>Do \u0111i\u1ec3m P n\u1eb1m gi\u1eefa hai \u0111i\u1ec3m O v\u00e0 Q n\u00ean OP < OQ<br\/>Hay OQ > R suy ra \u0111i\u1ec3m Q n\u1eb1m b\u00ean ngo\u00e0i \u0111\u01b0\u1eddng tr\u00f2n (O; R)<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D. OQ > R, \u0111i\u1ec3m Q n\u1eb1m b\u00ean ngo\u00e0i \u0111\u01b0\u1eddng tr\u00f2n (O; R)<\/span><\/span> <br\/><\/span>","column":1}]}],"id_ques":2214},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t \u0111\u1ec3 \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D116.png' \/><\/center>Cho \u0111\u01b0\u1eddng tr\u00f2n t\u00e2m O b\u00e1n k\u00ednh R, v\u00e0 \u0111i\u1ec3m F nh\u01b0 h\u00ecnh v\u1ebd. N\u1ed1i O v\u1edbi F. So s\u00e1nh OF v\u00e0 R, v\u00e0 cho bi\u1ebft \u0111i\u1ec3m F n\u1eb1m \u1edf v\u1ecb tr\u00ed n\u00e0o so v\u1edbi \u0111\u01b0\u1eddng tr\u00f2n (O; R)","select":["A. OF < R, \u0111i\u1ec3m F n\u1eb1m b\u00ean tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; R)","B. OF = R, \u0111i\u1ec3m F n\u1eb1m b\u00ean tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; R)","C. OF < R, \u0111i\u1ec3m F n\u1eb1m b\u00ean trong \u0111\u01b0\u1eddng tr\u00f2n (O; R)","D. OF > R, \u0111i\u1ec3m F n\u1eb1m b\u00ean ngo\u00e0i \u0111\u01b0\u1eddng tr\u00f2n (O; R)"],"hint":"","explain":" H\u01b0\u1edbng d\u1eabn:<\/span><br\/>+ K\u00e9o d\u00e0i OF, so s\u00e1nh OF v\u1edbi R<br\/>+ X\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u1ee7a \u0111i\u1ec3m F so v\u1edbi \u0111\u01b0\u1eddng tr\u00f2n (O; R)<br\/>N\u1ebfu OF < R th\u00ec \u0111i\u1ec3m F n\u1eb1m b\u00ean trong \u0111\u01b0\u1eddng tr\u00f2n (O; R)<br\/>N\u1ebfu OF = R th\u00ec \u0111i\u1ec3m F n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O; R)<br\/>N\u1ebfu OF > R th\u00ec \u0111i\u1ec3m F n\u1eb1m b\u00ean ngo\u00e0i \u0111\u01b0\u1eddng tr\u00f2n (O; R)<\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D117.png' \/><\/center> N\u1ed1i O v\u1edbi F. \u0110o\u1ea1n OF k\u00e9o d\u00e0i c\u1eaft \u0111\u01b0\u1eddng tr\u00f2n (O; R) t\u1ea1i \u0111i\u1ec3m E<br\/>Do \u0111i\u1ec3m E n\u1eb1m gi\u1eefa hai \u0111i\u1ec3m O v\u00e0 F n\u00ean OF < OE<br\/>Hay OF < R suy ra \u0111i\u1ec3m F n\u1eb1m b\u00ean trong \u0111\u01b0\u1eddng tr\u00f2n (O; R)<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C. OF < R, \u0111i\u1ec3m F n\u1eb1m b\u00ean trong \u0111\u01b0\u1eddng tr\u00f2n (O; R)<\/span><\/span> <br\/><\/span>","column":1}]}],"id_ques":2215},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t \u0111\u1ec3 \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D118.png' \/><\/center>Cho h\u00ecnh v\u1ebd nh\u01b0 tr\u00ean. \u0110o\u1ea1n th\u1eb3ng CM l\u00e0 c\u1ea1nh chung c\u1ee7a hai tam gi\u00e1c n\u00e0o?","select":["A. $\\triangle$ABC v\u00e0 $\\triangle$AMC","B. $\\triangle$BCM v\u00e0 $\\triangle$AMC","C. $\\triangle$ABC v\u00e0 $\\triangle$BCM","D. $\\triangle$AMC v\u00e0 $\\triangle$AMB"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D119.png' \/><\/center>Ta c\u00f3: CM l\u00e0 c\u1ea1nh chung c\u1ee7a $\\triangle$CMA v\u00e0 $\\triangle$CMB (hay $\\triangle$BCM v\u00e0 $\\triangle$AMC)<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B. $\\triangle$BCM v\u00e0 $\\triangle$AMC<\/span><\/span> <br\/>","column":2}]}],"id_ques":2216},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t \u0111\u1ec3 \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D120.png' \/><\/center>Cho h\u00ecnh v\u1ebd nh\u01b0 tr\u00ean. Cho h\u00ecnh v\u1ebd nh\u01b0 tr\u00ean. D\u1ef1a v\u00e0o h\u00ecnh v\u1ebd h\u00e3y k\u1ec3 t\u00ean hai tam gi\u00e1c c\u00f3 hai g\u00f3c k\u1ec1 b\u00f9 nhau.","select":["A. $\\triangle$ABC v\u00e0 $\\triangle$APC","B. $\\triangle$BCP v\u00e0 $\\triangle$APC","C. $\\triangle$ABC v\u00e0 $\\triangle$ACP","D. $\\triangle$APC v\u00e0 $\\triangle$APB"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D123.png' \/><\/center>Quan s\u00e1t h\u00ecnh v\u1ebd ta th\u1ea5y:<br\/>Hai g\u00f3c k\u1ec1 b\u00f9 nhau l\u00e0: $\\widehat{BPA}$ v\u00e0 $\\widehat{CPA}$<br\/> V\u1eady hai tam gi\u00e1c c\u00f3 hai g\u00f3c k\u1ec1 b\u00f9 nhau l\u00e0: $\\triangle$BPA v\u00e0 $\\triangle$CPA (hay $\\triangle$APC v\u00e0 $\\triangle$APB) <br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D. $\\triangle$APC v\u00e0 $\\triangle$APB<\/span><\/span> <br\/>","column":2}]}],"id_ques":2217},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t \u0111\u1ec3 \u0111i\u1ec1n v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D118.png' \/><\/center>Cho h\u00ecnh v\u1ebd nh\u01b0 tr\u00ean. D\u1ef1a v\u00e0o h\u00ecnh v\u1ebd h\u00e3y k\u1ec3 t\u00ean c\u00e1c g\u00f3c c\u1ee7a $\\triangle$ AMC.","select":["A. $\\widehat{MAC}$, $\\widehat{MBC}$, $\\widehat{BCA}$","B. $\\widehat{MAC}$, $\\widehat{ACM}$, $\\widehat{CMA}$","C. $\\widehat{MAC}$, $\\widehat{MBC}$, $\\widehat{ACM}$","D. $\\widehat{MAC}$, $\\widehat{MCA}$, $\\widehat{BCA}$"],"hint":"","explain":" B\u00e0i gi\u1ea3i:<\/span><br\/><center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D118.png' \/><\/center> C\u00e1c g\u00f3c c\u1ee7a $\\triangle$ AMC l\u00e0: <br\/>$\\widehat{MAC}$, $\\widehat{ACM}$, $\\widehat{CMA}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B. $\\widehat{MAC}$, $\\widehat{ACM}$, $\\widehat{CMA}$<\/span><\/span> <br\/>","column":2}]}],"id_ques":2218},{"time":9,"part":[{"title":"\u0110i\u1ec1n \u0111\u00e1p \u00e1n th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["P"],["PM","MP"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D124.png' \/><\/center>D\u1ef1a v\u00e0o h\u00ecnh v\u1ebd tr\u00ean h\u00e3y k\u1ec3 t\u00ean c\u00e1c \u0111\u1ec9nh v\u00e0 c\u00e1c c\u1ea1nh c\u1ee7a $\\triangle$MNP<br\/>C\u00e1c \u0111\u1ec9nh c\u1ee7a $\\triangle$MNP l\u00e0: M, _input_, N<br\/>C\u00e1c c\u1ea1nh c\u1ee7a $\\triangle$MNP l\u00e0: NP, _input_, MN<\/span>","hint":"","explain":"B\u00e0i gi\u1ea3i:<\/span><br\/>Tam gi\u00e1c MNP c\u00f3:<br\/>+ Ba \u0111\u1ec9nh l\u00e0: M, P, N<br\/>+ Ba c\u1ea1nh l\u00e0: MN, NP, PM (hay MN, NP, MP)<br\/>V\u1eady c\u00e1c \u0111\u00e1p \u00e1n c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi l\u00e0: P, PM<\/span> ( ho\u1eb7c P, MP)<\/span> <br\/><\/span> "}]}],"id_ques":2219},{"time":9,"part":[{"title":"\u0110i\u1ec1n \u0111\u00e1p \u00e1n th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["B"],["BH","HB"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/hinhhoc/bai14/lv1/img\/H625_D125.png' \/><\/center>D\u1ef1a v\u00e0o h\u00ecnh v\u1ebd tr\u00ean h\u00e3y k\u1ec3 t\u00ean c\u00e1c \u0111\u1ec9nh v\u00e0 c\u00e1c c\u1ea1nh c\u1ee7a $\\triangle$ABH<br\/>C\u00e1c \u0111\u1ec9nh c\u1ee7a $\\triangle$ABH l\u00e0: A, _input_, H<br\/>C\u00e1c c\u1ea1nh c\u1ee7a $\\triangle$ABH l\u00e0: AB, _input_, AH<\/span>","hint":"","explain":"B\u00e0i gi\u1ea3i:<\/span><br\/>Tam gi\u00e1c ABH c\u00f3:<br\/>+ Ba \u0111\u1ec9nh l\u00e0: A, B, H<br\/>+ Ba c\u1ea1nh l\u00e0: AB, BH, AH (hay AB, HB, AH)<br\/>V\u1eady c\u00e1c \u0111\u00e1p \u00e1n c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi l\u00e0: B, BH ( ho\u1eb7c B, HB)<\/span> <\/span> <br\/><\/span> "}]}],"id_ques":2220}],"lesson":{"save":0,"level":1}}

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