{"common":{"save":0,"post_id":"6665","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6831","post_id":"6665","mon_id":"1158921","chapter_id":"1158939","question":"<p>Bi\u1ebft&nbsp;\u25b3ABC<span class=\"math-tex\">$\\backsim$<\/span>\u25b3MNP theo t\u1ec9 s\u1ed1 2 v&agrave; MP = 4 cm. T&iacute;nh AC .<\/p>","options":["<strong>A.<\/strong> 2 cm","<strong>B.<\/strong> 4 cm","<strong>C.<\/strong> 8 cm","<strong>D.<\/strong> 6 cm"],"correct":"3","level":"3","hint":"","answer":"<p>V&igrave;&nbsp; \u25b3ABC<span class=\"math-tex\">$\\backsim$<\/span>\u25b3MNP theo t\u1ec9 s\u1ed1&nbsp;2&nbsp; n&ecirc;n&nbsp;&nbsp;<span class=\"math-tex\">$\\dfrac{AC}{MP}=2$<\/span>&nbsp;&rArr; AC = 2.MP = 2.4 = 8 cm.<\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong> 8 cm.<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-03 07:12:43","option_type":"txt","len":0},{"id":"6834","post_id":"6665","mon_id":"1158921","chapter_id":"1158939","question":"<p>Cho&nbsp;<span class=\"math-tex\">$\u25b3ABC\\backsim\u25b3MNP$<\/span>. Bi\u1ebft&nbsp;\u25b3ABC c&acirc;n t\u1ea1i A. C&acirc;u n&agrave;o sau \u0111&acirc;y l&agrave; <strong>\u0111&uacute;ng<\/strong>?<\/p>","options":["<strong>A.<\/strong> \u25b3MNP c&acirc;n t\u1ea1i M","<strong>B.<\/strong> \u25b3MNP c&acirc;n t\u1ea1i N","<strong>C.<\/strong> \u25b3MNP c&acirc;n t\u1ea1i P","<strong>D.<\/strong> \u25b3MNP kh&ocirc;ng ph\u1ea3i tam gi&aacute;c c&acirc;n"],"correct":"1","level":"3","hint":"","answer":"<p>V&igrave;&nbsp;&nbsp;<span class=\"math-tex\">$\u25b3ABC\\backsim\u25b3MNP$<\/span>&nbsp;n&ecirc;n&nbsp;<span class=\"math-tex\">$\\widehat{B}=\\widehat{N};\\widehat{C}=\\widehat{P}$<\/span>&nbsp;&nbsp;<\/p><p>M&agrave;&nbsp;&nbsp;<span class=\"math-tex\">$\\widehat{B}=\\widehat{C}$<\/span>&nbsp; (\u25b3ABC c&acirc;n t\u1ea1i A)&nbsp;&nbsp;<\/p><p>Suy ra&nbsp;<span class=\"math-tex\">$\\widehat{N}=\\widehat{P}$<\/span><\/p><p>V\u1eady&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;\u25b3MNP c&acirc;n t\u1ea1i M .<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-03 07:23:01","option_type":"txt","len":2},{"id":"6837","post_id":"6665","mon_id":"1158921","chapter_id":"1158939","question":"<p>Cho&nbsp;&nbsp;\u25b3ABC<span class=\"math-tex\">$\\backsim$<\/span>\u25b3DEF . Bi\u1ebft&nbsp;&nbsp;\u25b3DEF&nbsp; l&agrave; tam gi&aacute;c \u0111\u1ec1u. C&acirc;u n&agrave;o <strong>\u0111&uacute;ng nh\u1ea5t<\/strong>?<\/p>","options":["<strong>A.<\/strong> \u25b3ABC c&acirc;n t\u1ea1i A","<strong>B.<\/strong> \u25b3ABC c&acirc;n t\u1ea1i B","<strong>C.<\/strong> \u25b3ABC c&acirc;n t\u1ea1i C","<strong>D.<\/strong> \u25b3ABC \u0111\u1ec1u"],"correct":"4","level":"3","hint":"","answer":"<p>V&igrave;&nbsp;&nbsp;\u25b3ABC\u25b3<span class=\"math-tex\">$\\backsim$<\/span>DEF n&ecirc;n&nbsp;<span class=\"math-tex\">$\\widehat{A}=\\widehat{D};\\widehat{B}=\\widehat{E};\\widehat{C}=\\widehat{F}$<\/span>&nbsp;.<\/p><p>M&agrave;&nbsp; <span class=\"math-tex\">$\\widehat{D}=\\widehat{E}=\\widehat{F}=60^0$<\/span>&nbsp;&nbsp; (\u25b3DEF&nbsp; \u0111\u1ec1u).<\/p><p>&rArr;&nbsp;<span class=\"math-tex\">$\\widehat{A}=\\widehat{B}=\\widehat{C}=60^0$<\/span>&nbsp;.<\/p><p>&rArr;&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;\u25b3ABC \u0111\u1ec1u&nbsp;<\/span> l&agrave; \u0111&aacute;p &aacute;n \u0111&uacute;ng nh\u1ea5t.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-03 07:30:06","option_type":"txt","len":2}]}