{"common":{"save":0,"post_id":"6154","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"2671","post_id":"6154","mon_id":"1158530","chapter_id":"1158612","question":"<p>T&iacute;nh chu vi h&igrave;nh ch\u1eef nh\u1eadt, bi\u1ebft chi\u1ec1u d&agrave;i = 50mm, chi\u1ec1u r\u1ed9ng = 25mm?&nbsp;<\/p>","options":["150cm","15cm","15mm","150dm"],"correct":"2","level":"3","hint":"<p>Chu vi h&igrave;nh ch\u1eef nh\u1eadt l&agrave; l\u1ea5y<\/p><p><span style=\"color:#2980b9;\">(Chi\u1ec1u d&agrave;i +&nbsp;Chi\u1ec1u r\u1ed9ng ) x 2<\/span><\/p>","answer":"<p>Chu vi h&igrave;nh ch\u1eef nh\u1eadt&nbsp;\u0111&oacute; l&agrave;:<\/p><p>(50 + 25) x 2 = 150 (mm)<\/p><p><span style=\"color:#8e44ad;\">\u0110\u1ed5i 150mm = 15cm<\/span><\/p><p>\u0110&aacute;p&nbsp;&aacute;n \u0111&uacute;ng l&agrave;: <span style=\"color:#16a085;\"><strong>15cm&nbsp;<\/strong><\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"129","test":"3","date":"2022-08-29 04:46:00","option_type":"txt","len":0},{"id":"2672","post_id":"6154","mon_id":"1158530","chapter_id":"1158612","question":"<p>\u0110\u1ed9 d&agrave;i&nbsp;\u0111o\u1ea1n AB = 186 mm, N n\u1eb1m gi\u1eefa A v&agrave; B, bi\u1ebft AN =<span class=\"frac123\"><span class=\"ts\">1<\/span><span class=\"ms\">3<\/span><\/span>&nbsp; AB. T&iacute;nh&nbsp;\u0111\u1ed9 d&agrave;i&nbsp;\u0111o\u1ea1n NB?<\/p>","options":["124mm","123mm","62mm","63mm"],"correct":"1","level":"3","hint":"<p>N n\u1eb1m gi\u1eefa A v&agrave; B.<\/p>","answer":"<p>\u0110\u1ed9 d&agrave;i&nbsp;\u0111o\u1ea1n AN l&agrave; :<\/p><p>186 : 3 = 62 (mm)<\/p><p>\u0110\u1ed9 d&agrave;i&nbsp;\u0111o\u1ea1n NB l&agrave;:<\/p><p>186 - 62 = 124 (mm)<\/p><p>\u0110&aacute;p&nbsp;&aacute;n: <span style=\"color:#16a085;\"><strong>124mm<\/strong><\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"129","test":"3","date":"2022-08-29 04:54:07","option_type":"txt","len":0},{"id":"2673","post_id":"6154","mon_id":"1158530","chapter_id":"1158612","question":"<p>M\u1ed9t c\u1eeda h&agrave;ng c&oacute; mi\u1ebfng&nbsp;v\u1ea3i d&agrave;i 1946mm, bu\u1ed5i s&aacute;ng b&aacute;n&nbsp;\u0111\u01b0\u1ee3c<span class=\"frac123\"><span class=\"ts\">1<\/span><span class=\"ms\">7<\/span><\/span>&nbsp;chi\u1ec1u d&agrave;i mi\u1ebfng&nbsp;v\u1ea3i, bu\u1ed5i chi\u1ec1u b&aacute;n \u0111\u01b0\u1ee3c s\u1ed1 v\u1ea3i c&ograve;n l\u1ea1i.&nbsp;H\u1ecfi bu\u1ed5i&nbsp;chi\u1ec1u b&aacute;n&nbsp;\u0111\u01b0\u1ee3c bao nhi&ecirc;u?<\/p>","options":["1667mm","1645mm","1654mm","1668mm"],"correct":"4","level":"3","hint":"","answer":"<p>\u0110\u1ed9 d&agrave;i&nbsp;mi\u1ebfng&nbsp;v\u1ea3i b&aacute;n&nbsp;\u0111\u01b0\u1ee3c bu\u1ed5i s&aacute;ng l&agrave;:<\/p><p>1946 : 7 = 278 (mm)<\/p><p>Bu\u1ed5i chi\u1ec1u b&aacute;n&nbsp;\u0111\u01b0\u1ee3c :<\/p><p>1946 - 278 = 1668 (mm)<\/p><p>\u0110&aacute;p s\u1ed1: <span style=\"color:#16a085;\"><strong>1668 mm<\/strong><\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"129","test":"3","date":"2022-08-29 05:00:10","option_type":"txt","len":0}]}