Deprecated: Creation of dynamic property EDD_Theme_Updater_Admin::$item_name is deprecated in /home/dh_vfxcbf/onthitot.com/wp-content/themes/blogrank-pro/updater/theme-updater-admin.php on line 58

Deprecated: Creation of dynamic property EDD_Theme_Updater_Admin::$beta is deprecated in /home/dh_vfxcbf/onthitot.com/wp-content/themes/blogrank-pro/updater/theme-updater-admin.php on line 64

Deprecated: Creation of dynamic property EDD_Theme_Updater_Admin::$item_id is deprecated in /home/dh_vfxcbf/onthitot.com/wp-content/themes/blogrank-pro/updater/theme-updater-admin.php on line 65

Warning: Cannot modify header information - headers already sent by (output started at /home/dh_vfxcbf/onthitot.com/wp-content/themes/blogrank-pro/updater/theme-updater-admin.php:58) in /home/dh_vfxcbf/onthitot.com/wp-includes/rest-api/class-wp-rest-server.php on line 1794

Warning: Cannot modify header information - headers already sent by (output started at /home/dh_vfxcbf/onthitot.com/wp-content/themes/blogrank-pro/updater/theme-updater-admin.php:58) in /home/dh_vfxcbf/onthitot.com/wp-includes/rest-api/class-wp-rest-server.php on line 1794

Warning: Cannot modify header information - headers already sent by (output started at /home/dh_vfxcbf/onthitot.com/wp-content/themes/blogrank-pro/updater/theme-updater-admin.php:58) in /home/dh_vfxcbf/onthitot.com/wp-includes/rest-api/class-wp-rest-server.php on line 1794

Warning: Cannot modify header information - headers already sent by (output started at /home/dh_vfxcbf/onthitot.com/wp-content/themes/blogrank-pro/updater/theme-updater-admin.php:58) in /home/dh_vfxcbf/onthitot.com/wp-includes/rest-api/class-wp-rest-server.php on line 1794

Warning: Cannot modify header information - headers already sent by (output started at /home/dh_vfxcbf/onthitot.com/wp-content/themes/blogrank-pro/updater/theme-updater-admin.php:58) in /home/dh_vfxcbf/onthitot.com/wp-includes/rest-api/class-wp-rest-server.php on line 1794

Warning: Cannot modify header information - headers already sent by (output started at /home/dh_vfxcbf/onthitot.com/wp-content/themes/blogrank-pro/updater/theme-updater-admin.php:58) in /home/dh_vfxcbf/onthitot.com/wp-includes/rest-api/class-wp-rest-server.php on line 1794

Warning: Cannot modify header information - headers already sent by (output started at /home/dh_vfxcbf/onthitot.com/wp-content/themes/blogrank-pro/updater/theme-updater-admin.php:58) in /home/dh_vfxcbf/onthitot.com/wp-includes/rest-api/class-wp-rest-server.php on line 1794

Warning: Cannot modify header information - headers already sent by (output started at /home/dh_vfxcbf/onthitot.com/wp-content/themes/blogrank-pro/updater/theme-updater-admin.php:58) in /home/dh_vfxcbf/onthitot.com/wp-includes/rest-api/class-wp-rest-server.php on line 1794
{"id":6350,"date":"2018-01-24T11:12:13","date_gmt":"2018-01-24T04:12:13","guid":{"rendered":"https:\/\/onthitot.com\/?p=6350"},"modified":"2018-12-02T22:32:30","modified_gmt":"2018-12-02T15:32:30","slug":"cong-thuc-tinh-dien-tich-day-dien-tich-xung-quanh-dien-tich-toan-phan-va-the-tich-cua-hinh-lap-phuong","status":"publish","type":"post","link":"https:\/\/onthitot.com\/cong-thuc-tinh-dien-tich-day-dien-tich-xung-quanh-dien-tich-toan-phan-va-the-tich-cua-hinh-lap-phuong\/","title":{"rendered":"H\u00ecnh l\u1eadp ph\u01b0\u01a1ng v\u00e0 c\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch \u0111\u00e1y, di\u1ec7n t\u00edch xung quanh, di\u1ec7n t\u00edch to\u00e0n ph\u1ea7n v\u00e0 th\u1ec3 t\u00edch c\u1ee7a h\u00ecnh l\u1eadp ph\u01b0\u01a1ng."},"content":{"rendered":"

H\u00ecnh l\u1eadp ph\u01b0\u01a1ng v\u00e0 c\u00e1ch t\u00ednh di\u1ec7n t\u00edch \u0111\u00e1y, di\u1ec7n t\u00edch xung quanh, di\u1ec7n t\u00edch to\u00e0n ph\u1ea7n v\u00e0 th\u1ec3 t\u00edch c\u1ee7a h\u00ecnh l\u1eadp ph\u01b0\u01a1ng.<\/h2>\n

H\u00ecnh l\u1eadp ph\u01b0\u01a1ng l\u00e0 kh\u1ed1i h\u00ecnh c\u00f3 6 m\u1eb7t \u0111\u1ec1u l\u00e0 h\u00ecnh vu\u00f4ng b\u1eb1ng nhau, 12 c\u1ea1nh c\u00f3 chi\u1ec1u d\u00e0i b\u1eb1ng nhau, c\u00f3 t\u1ea5t c\u1ea3 8 \u0111\u1ec9nh.<\/h3>\n

Cho 1 h\u00ecnh l\u1eadp ph\u01b0\u01a1ng c\u00f3 c\u1ea1nh b\u1eb1ng a. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c\u00a0c\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch \u0111\u00e1y, di\u1ec7n t\u00edch xung quanh, di\u1ec7n t\u00edch to\u00e0n ph\u1ea7n v\u00e0 th\u1ec3 t\u00edch c\u1ee7a h\u00ecnh l\u1eadp ph\u01b0\u01a1ng:<\/p>\n

\"C\u00f4ng
C\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch \u0111\u00e1y, di\u1ec7n t\u00edch xung quanh, di\u1ec7n t\u00edch to\u00e0n ph\u1ea7n v\u00e0 th\u1ec3 t\u00edch c\u1ee7a h\u00ecnh l\u1eadp ph\u01b0\u01a1ng.<\/figcaption><\/figure>\n
    \n
  1. C\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch \u0111\u00e1y h\u00ecnh l\u1eadp ph\u01b0\u01a1ng<\/li>\n<\/ol>\n

    S\u0111\u00e1y<\/sub> = 2a2<\/sup><\/p>\n

      \n
    1. C\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch xung quanh h\u00ecnh l\u1eadp ph\u01b0\u01a1ng<\/li>\n<\/ol>\n

      Sxq<\/sub> = 4a2<\/sup><\/p>\n

        \n
      1. C\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch to\u00e0n ph\u1ea7n h\u00ecnh l\u1eadp ph\u01b0\u01a1ng<\/li>\n<\/ol>\n

        Stp<\/sub> = S\u0111\u00e1y<\/sub> + Sxq<\/sub> = 6a2<\/sup><\/p>\n

          \n
        1. C\u00f4ng th\u1ee9c t\u00ednh th\u1ec3 t\u00edch h\u00ecnh l\u1eadp ph\u01b0\u01a1ng<\/li>\n<\/ol>\n

          V = a3<\/sup><\/p>\n

          V\u00ed d\u1ee5: Cho h\u00ecnh l\u1eadp ph\u01b0\u01a1ng ABCD.A\u2019B\u2019C\u2019D\u2019, bi\u1ebft c\u00e1c c\u1ea1nh c\u1ee7a h\u00ecnh l\u1eadp ph\u01b0\u01a1ng c\u00f3 \u0111\u1ed9 d\u00e0i b\u1eb1ng 6cm. H\u00e3y t\u00ednh di\u1ec7n t\u00edch \u0111\u00e1y, di\u1ec7n t\u00edch xung quanh v\u00e0 di\u1ec7n t\u00edch to\u00e0n ph\u1ea7n c\u1ee7a h\u00ecnh l\u1eadp ph\u01b0\u01a1ng \u0111\u00f3.<\/p>\n

          \"V\u00ed
          V\u00ed du v\u1ec1 c\u00f4ng th\u1ee9c t\u00ednh di\u1ec7n t\u00edch \u0111\u00e1y, di\u1ec7n t\u00edch xung quanh, di\u1ec7n t\u00edch to\u00e0n ph\u1ea7n v\u00e0 th\u1ec3 t\u00edch c\u1ee7a h\u00ecnh l\u1eadp ph\u01b0\u01a1ng.<\/figcaption><\/figure>\n

          – Di\u1ec7n t\u00edch \u0111\u00e1y h\u00ecnh l\u1eadp ph\u01b0\u01a1ng ABCD.A\u2019B\u2019C\u2019D\u2019 b\u1eb1ng:<\/p>\n

          S\u0111\u00e1y<\/sub> = 2a2<\/sup> = 2×62<\/sup> = 72 (cm2<\/sup>)<\/p>\n

          – Di\u1ec7n t\u00edch xung quanh h\u00ecnh l\u1eadp ph\u01b0\u01a1ng ABCD.A\u2019B\u2019C\u2019D\u2019 b\u1eb1ng:<\/p>\n

          Sxq<\/sub> = 4a2<\/sup> = 4×62<\/sup> = 144 (cm2<\/sup>)<\/p>\n

          – Di\u1ec7n t\u00edch to\u00e0n ph\u1ea7n h\u00ecnh l\u1eadp ph\u01b0\u01a1ng ABCD.A\u2019B\u2019C\u2019D\u2019 b\u1eb1ng:<\/p>\n

          Stp<\/sub> = S\u0111\u00e1y<\/sub> + Sxq<\/sub> = 72+144 = 216 (cm2<\/sup>)<\/p>\n

          – Th\u1ec3 t\u00edch h\u00ecnh l\u1eadp ph\u01b0\u01a1ng ABCD.A\u2019B\u2019C\u2019D\u2019 b\u1eb1ng:<\/p>\n

          V = a3<\/sup> = 63<\/sup> = 216 (cm3<\/sup>)<\/p>\n

          Tr\u00ean \u0111\u00e2y l\u00e0 c\u00f4ng th\u1ee9c\u00a0t\u00ednh di\u1ec7n t\u00edch \u0111\u00e1y, di\u1ec7n t\u00edch xung quanh, di\u1ec7n t\u00edch to\u00e0n ph\u1ea7n v\u00e0 th\u1ec3 t\u00edch c\u1ee7a h\u00ecnh l\u1eadp ph\u01b0\u01a1ng. C\u00e1c b\u1ea1n c\u00f9ng tham kh\u1ea3o nh\u00e9.<\/p>\n

          Ch\u00fac c\u00e1c b\u1ea1n h\u1ecdc t\u1ed1t<\/p>\n

           <\/p>\n","protected":false},"excerpt":{"rendered":"

          H\u00ecnh l\u1eadp ph\u01b0\u01a1ng v\u00e0 c\u00e1ch t\u00ednh di\u1ec7n t\u00edch \u0111\u00e1y, di\u1ec7n t\u00edch xung quanh, di\u1ec7n t\u00edch to\u00e0n ph\u1ea7n v\u00e0 th\u1ec3 t\u00edch c\u1ee7a h\u00ecnh l\u1eadp ph\u01b0\u01a1ng. H\u00ecnh l\u1eadp ph\u01b0\u01a1ng l\u00e0 kh\u1ed1i h\u00ecnh… <\/p>\n","protected":false},"author":1,"featured_media":6356,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[413,406],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/6350"}],"collection":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/comments?post=6350"}],"version-history":[{"count":0,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/6350\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/media\/6356"}],"wp:attachment":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/media?parent=6350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/categories?post=6350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/tags?post=6350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}