Ôn tập chương 4 Hình học phẳng- Bài tập trung bình số 1

Home Lớp 6 Toán lớp 6 - Sách kết nối tri thức Ôn tập chương 4: Một số hình phẳng trong thực tiễnBài tập trung bình

{"common":{"save":0,"post_id":"4619","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6914","post_id":"4619","mon_id":"1158113","chapter_id":"1158129","question":"Tính di\u1ec7n tích c\u1ee7a hình ch\u1eef nh\u1eadt, bi\u1ebft chi\u1ec1u r\u1ed9ng c\u1ee7a nó là 15 dm và chi\u1ec1u dài g\u1ea5p \u0111ôi chi\u1ec1u r\u1ed9ng.<\/p><svg height=\"130\" width=\"250\"> <g><title><\/title><rect fill=\"#fff\" height=\"132\" id=\"canvas_background\" width=\"252\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_2\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><rect fill=\"#aaff56\" height=\"112\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"224\" x=\"11.9\" y=\"9.85\"><\/rect> <\/g> <\/svg><\/span><\/p>","options":["455 dm$^2$<\/span>","450 dm$^2$<\/span>","540 dm$^2$<\/span>"],"correct":"2","level":"2","hint":"Tính chi\u1ec1u dài c\u1ee7a hình ch\u1eef nh\u1eadt sau \u0111ó tính di\u1ec7n tích c\u1ee7a hình ch\u1eef nh\u1eadt \u0111ó.<\/p>","answer":"Vì chi\u1ec1u dài g\u1ea5p \u0111ôi chi\u1ec1u r\u1ed9ng nên chi\u1ec1u dài c\u1ee7a hình ch\u1eef nh\u1eadt là:<\/p>15 . 2 = 30 (dm)<\/p>Di\u1ec7n tích c\u1ee7a hình ch\u1eef nh\u1eadt là:<\/p>S = 15 . 30 = 450 (dm$^2$<\/span>)<\/p>V\u1eady \u0111áp án là 450 dm$^2$<\/span><\/strong><\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"132","test":"3","date":"2021-08-30 13:17:52","option_type":"math","len":0},{"id":"6919","post_id":"4619","mon_id":"1158113","chapter_id":"1158129","question":"Cho hình bình hành ABCD có AH = 500 mm, AB = 1200 mm. Nh\u1eadn xét nào sau \u0111ây \u0111úng<\/strong>?<\/p> <svg height=\"150\" width=\"250\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g><title><\/title><rect fill=\"#fff\" height=\"152\" id=\"canvas_background\" width=\"252\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" id=\"canvasGrid\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" id=\"svg_7\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><image height=\"117\" id=\"svg_1\" width=\"235.00001\" x=\"6\" xlink:href=\"data:image\/png;base64,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\" y=\"19\"><\/image> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"27.9\" xml:space=\"preserve\" y=\"26\">A<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_3\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"227.9\" xml:space=\"preserve\" y=\"18\">B<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_4\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"211.9\" xml:space=\"preserve\" y=\"136\">C<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_5\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"3.9\" xml:space=\"preserve\" y=\"145\">D<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_6\" stroke=\"#000\" stroke-width=\"0\" text-anchor=\"start\" x=\"47.9\" xml:space=\"preserve\" y=\"147\">H<\/text> <\/g> <\/svg><\/span><\/p>","options":["CD = 12 cm","CD > AB","Di\u1ec7n tích c\u1ee7a ABCD là 60 dm$^2$<\/span>"],"correct":"3","level":"2","hint":"Tính c\u1ea1nh CD và di\u1ec7n tích c\u1ee7a hình bình hành ABCD sau \u0111ó \u0111\u1ed5i v\u1ec1 \u0111\u01a1n v\u1ecb thích h\u1ee3p r\u1ed3i ki\u1ec3m tra các nh\u1eadn xét \u0111úng hay sai.<\/p>","answer":"Vì ABCD là hình bình hành nên CD = AB = 1200 mm<\/p>Di\u1ec7n tích c\u1ee7a hình bình hành ABCD là:<\/p>S =  AH . AB =  500 . 1200 = 600 000 (mm$^2$<\/span>)<\/p>Xét các \u0111áp án:<\/p>CD = 12 cm  Sai<\/span> vì  CD = 1200 mm = 120 cm<\/p>CD > AB       Sai<\/span> vì CD = AB (hai c\u1ea1nh \u0111\u1ed1i nhau c\u1ee7a hình bình hành thì b\u1eb1ng nhau)<\/p>Di\u1ec7n tích c\u1ee7a ABCD là 60 dm$^2$<\/span>  \u0110úng<\/span> vì di\u1ec7n tích c\u1ee7a hình bình hành ABCD là 600 000 mm$^2$<\/span> = 60 dm$^2$<\/span><\/p>V\u1eady \u0111áp án \u0111úng là Di\u1ec7n tích c\u1ee7a ABCD là 60 dm$^2$<\/span><\/strong><\/span> <\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"3","date":"2021-08-30 13:48:35","option_type":"math","len":0},{"id":"6935","post_id":"4619","mon_id":"1158113","chapter_id":"1158129","question":"M\u1ed9t m\u1ea3nh \u0111\u1ea5t hình vuông có di\u1ec7n tích là 16 m$^2$<\/span>. Tính chu vi c\u1ee7a m\u1ea3nh \u0111\u1ea5t \u0111ó.<\/p><svg height=\"150\" width=\"150\"> <g><title><\/title><rect fill=\"#fff\" height=\"152\" id=\"canvas_background\" width=\"152\" 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><rect fill=\"#56ff56\" height=\"130\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"130\" x=\"9.9\" y=\"8.85\"><\/rect> <\/g> <\/svg><\/span><\/p>Chu vi c\u1ee7a m\u1ea3nh \u0111\u1ea5t là: C = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> m<\/p>","options":"","correct":["[\"16\"]"],"level":"2","hint":"Tìm c\u1ea1nh c\u1ee7a hình vuông sau \u0111ó tìm chu vi c\u1ee7a nó.<\/p>","answer":"G\u1ecdi x (m) là \u0111\u1ed9 dài c\u1ea1nh c\u1ee7a hình vuông. (v\u1edbi x > 0)<\/p>Vì di\u1ec7n tích hình vuông là 16 m$^2$<\/span> nên<\/p>x$^2$<\/span> = 16<\/p>x$^2$<\/span> = 4$^2$<\/span><\/p>x = 4 ho\u1eb7c x = -4<\/p>Mà x > 0 nên x = 4 <\/p>Suy ra c\u1ea1nh c\u1ee7a hình vuông là 4 m.<\/p>Chu vi c\u1ee7a m\u1ea3nh \u0111\u1ea5t hình vuông là: C = 4 . 4 = 16 (m)<\/p>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n là 16<\/strong><\/span>.<\/p>","type":"blank","extra_type":"","time":"0","user_id":"132","test":"3","date":"2021-08-30 15:34:02"}]}