Đoạn thẳng. Độ dài đoạn thẳng-Bài tập trung bình số 2

Home Lớp 6 Toán lớp 6 - Sách kết nối tri thức Bài 34: Đoạn thẳng. Độ dài đoạn thẳngBài tập trung bình

{"common":{"save":0,"post_id":"4835","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8664","post_id":"4835","mon_id":"1158113","chapter_id":"1158164","question":"Cho các \u0111o\u1ea1n th\u1eb3ng<\/p>AB = 56 cm ; CD = 85 mm ; MN = 10 dm<\/p>S\u1eafp x\u1ebfp các \u0111o\u1ea1n th\u1eb3ng theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n v\u1ec1 \u0111\u1ed9 dài.<\/p>","options":"","correct":["CD","AB","MN"],"level":"2","hint":"\u0110\u01b0a các \u0111o\u1ea1n th\u1eb3ng v\u1ec1 cùng m\u1ed9t \u0111\u01a1n v\u1ecb \u0111o r\u1ed3i so sánh và s\u1eafp x\u1ebfp.<\/p>","answer":"Ta có  AB = 56 cm<\/p>          CD = 85 mm = 8,5 cm (vì 1 cm  = 10 mm)<\/p>          MN = 10 dm = 100 cm (vì 1 dm  = 10 cm)<\/p>Do \u0111ó   CD < AB < MN  (vì 8,5 cm < 56 cm < 100 cm)<\/p>\u0110áp án \u0111úng là  CD   AB   MN<\/strong><\/span><\/p>","type":"reorder","extra_type":"number","time":"0","user_id":"131","test":"1","date":"2021-10-07 04:01:31","word":["AB","MN","CD"]},{"id":"8667","post_id":"4835","mon_id":"1158113","chapter_id":"1158164","question":"Có bao nhiêu \u0111o\u1ea1n th\u1eb3ng trong hình v\u1ebd d\u01b0\u1edbi dây?<\/p><svg height=\"200\" width=\"210\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"202\" id=\"canvas_background\" width=\"212\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><image height=\"215\" id=\"svg_2\" width=\"229\" x=\"-31.5\" 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y=\"-24.5\"><\/image> <\/g> <\/svg><\/span><\/p>\u0110áp s\u1ed1: Có <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> \u0111o\u1ea1n th\u1eb3ng.<\/strong><\/span><\/p>","options":"","correct":["[\"8\"]"],"level":"2","hint":"","answer":"Trong hình v\u1ebd có 8<\/span> \u0111o\u1ea1n th\u1eb3ng là  EB , EC , EA , ED , BC , AD , BA , CD<\/p>S\u1ed1 c\u1ea7n \u0111i\u1ec1n là  8<\/strong><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"1","date":"2021-10-08 01:33:13"},{"id":"8669","post_id":"4835","mon_id":"1158113","chapter_id":"1158164","question":"Cho hai \u0111i\u1ec3m A và B cách nhau m\u1ed9t kho\u1ea3ng 54 cm. N\u1ebfu ta ch\u1ecdn m\u1ed9t \u0111o\u1ea1n th\u1eb3ng có \u0111\u1ed9 dài 6 cm làm \u0111\u01a1n v\u1ecb \u0111\u1ed9 dài thì \u0111o\u1ea1n th\u1eb3ng AB có \u0111\u1ed9 dài b\u1eb1ng bao nhiêu \u0111\u01a1n v\u1ecb v\u1eeba ch\u1ecdn?<\/p>","options":["9 \u0111\u01a1n v\u1ecb","6 \u0111\u01a1n v\u1ecb","54 \u0111\u01a1n v\u1ecb"],"correct":"1","level":"2","hint":"","answer":"\u0110\u1ed9 dài \u0111o\u1ea1n th\u1eb3ng AB theo \u0111\u01a1n v\u1ecb v\u1eeba ch\u1ecdn là  $\\dfrac{54}{6}$<\/span> = 9  (\u0111\u01a1n v\u1ecb)<\/p>Suy ra AB = 9 \u0111\u01a1n v\u1ecb<\/p>\u0110áp án \u0111úng là  9 \u0111\u01a1n v\u1ecb<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2021-10-08 01:37:17","option_type":"txt","len":0}]}