{"common":{"save":0,"post_id":"1508","level":1,"total":20,"point":5,"point_extra":0},"segment":[{"id":"1981","post_id":"1508","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" Tr\u1ef1c t\u00e2m c\u1ee7a m\u1ed9t tam gi\u00e1c l\u00e0 \u0111i\u1ec3m c\u1eaft nhau c\u1ee7a: ","select":["A. Ba \u0111\u01b0\u1eddng trung tr\u1ef1c c\u1ee7a tam gi\u00e1c ","B. Ba \u0111\u01b0\u1eddng ph\u00e2n gi\u00e1c c\u1ee7a tam gi\u00e1c","C. Ba \u0111\u01b0\u1eddng trung tuy\u1ebfn c\u1ee7a tam gi\u00e1c","D. Ba \u0111\u01b0\u1eddng cao c\u1ee7a tam gi\u00e1c"],"hint":"","explain":" Tr\u1ef1c t\u00e2m c\u1ee7a tam gi\u00e1c l\u00e0 giao \u0111i\u1ec3m c\u1ee7a ba \u0111\u01b0\u1eddng cao <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D <\/span> ","column":2}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:23:06"},{"id":"1982","post_id":"1508","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"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":" Ba \u0111\u01b0\u1eddng cao c\u1ee7a tam gi\u00e1c c\u1eaft nhau t\u1ea1i m\u1ed9t \u0111i\u1ec3m g\u1ecdi l\u00e0: ","select":["A. Tr\u1ecdng t\u00e2m c\u1ee7a tam gi\u00e1c","B. Tr\u1ef1c t\u00e2m c\u1ee7a tam gi\u00e1c","C. T\u00e2m c\u1ee7a \u0111\u01b0\u1eddng tr\u00f2n ngo\u1ea1i ti\u1ebfp","D. T\u00e2m c\u1ee7a \u0111\u01b0\u1eddng tr\u00f2n n\u1ed9i ti\u1ebfp"],"hint":"","explain":" Ba \u0111\u01b0\u1eddng cao c\u1ee7a tam gi\u00e1c c\u00f9ng \u0111i qua m\u1ed9t \u0111i\u1ec3m, \u0111i\u1ec3m n\u00e0y l\u00e0 tr\u1ef1c t\u00e2m c\u1ee7a tam gi\u00e1c <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> ","column":2}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:23:06"},{"id":"1983","post_id":"1508","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" Cho tam gi\u00e1c vu\u00f4ng $MNP$ nh\u01b0 h\u00ecnh v\u1ebd: <br\/> <center><img src='img\/H7C3B23_D01.png' \/><\/center> <br\/> Kh\u1eb3ng \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2y \u0111\u00fang? ","select":["A. Tr\u1ef1c t\u00e2m c\u1ee7a tam gi\u00e1c n\u1eb1m b\u00ean trong tam gi\u00e1c","B. Tr\u1ef1c t\u00e2m c\u1ee7a tam gi\u00e1c n\u1eb1m b\u00ean ngo\u00e0i tam gi\u00e1c","C. Tr\u1ef1c t\u00e2m c\u1ee7a tam gi\u00e1c l\u00e0 trung \u0111i\u1ec3m c\u1ee7a c\u1ea1nh huy\u1ec1n $MN$ ","D. Tr\u1ef1c t\u00e2m c\u1ee7a tam gi\u00e1c tr\u00f9ng v\u1edbi \u0111i\u1ec3m $N$ "],"hint":"","explain":" <span class='basic_left'> V\u00ec $\\triangle{MNP}$ vu\u00f4ng t\u1ea1i $N$ <br\/> N\u00ean $NM \\perp NP$ t\u1ea1i $N$ <br\/> M\u00e0 ba \u0111\u01b0\u1eddng cao c\u1ee7a tam gi\u00e1c c\u00f9ng \u0111i qua m\u1ed9t \u0111i\u1ec3m n\u00ean giao \u0111i\u1ec3m ba \u0111\u01b0\u1eddng cao ch\u00ednh l\u00e0 $N$ <br\/> Hay tr\u1ef1c t\u00e2m c\u1ee7a tam gi\u00e1c tr\u00f9ng v\u1edbi \u0111i\u1ec3m $N$ <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D <\/span> <br\/> <span class='basic_green'> <i> Nh\u1eadn x\u00e9t: N\u1ebfu tam gi\u00e1c nh\u1ecdn th\u00ec tr\u1ef1c t\u00e2m \u1edf b\u00ean trong \u0111\u01b0\u1eddng tr\u00f2n <br\/> N\u1ebfu tam gi\u00e1c vu\u00f4ng th\u00ec tr\u1ef1c t\u00e2m tr\u00f9ng v\u1edbi \u0111\u1ec9nh tam gi\u00e1c vu\u00f4ng <br\/> N\u1ebfu tam gi\u00e1c t\u00f9 th\u00ec tr\u1ef1c t\u00e2m n\u1eb1m b\u00ean ngo\u00e0i tam gi\u00e1c <\/i> <\/span> ","column":1}]}]},"correct":"","level":"1","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:23:06"}]}