{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/e\/ec\/Calculate-the-Area-of-a-Rhombus-Step-2-Version-5.jpg\/v4-460px-Calculate-the-Area-of-a-Rhombus-Step-2-Version-5.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/e\/ec\/Calculate-the-Area-of-a-Rhombus-Step-2-Version-5.jpg\/v4-728px-Calculate-the-Area-of-a-Rhombus-Step-2-Version-5.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
2
两条对角线的长度相乘。这样我们得到6 cm x 8 cm = 48 cm2分别写下两个对角线的长度,两者相乘。这样的话,可得到6 cm X 8cm =48cm2,即此菱形的面积。单位是平方厘米。
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/d\/d5\/Calculate-the-Area-of-a-Rhombus-Step-5-Version-5.jpg\/v4-460px-Calculate-the-Area-of-a-Rhombus-Step-5-Version-5.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/d\/d5\/Calculate-the-Area-of-a-Rhombus-Step-5-Version-5.jpg\/v4-728px-Calculate-the-Area-of-a-Rhombus-Step-5-Version-5.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
2
两个长度相乘。一旦你知道了菱形的边长和高度,你只要把两个数值相乘就可以了。所以10 cm x 7 cm = 70 cm2。这个菱形的面积就是70平方厘米。
方法 3 的 3:
使用三角形公式计算
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/f\/f4\/Calculate-the-Area-of-a-Rhombus-Step-6-Version-4.jpg\/v4-460px-Calculate-the-Area-of-a-Rhombus-Step-6-Version-4.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/f\/f4\/Calculate-the-Area-of-a-Rhombus-Step-6-Version-4.jpg\/v4-728px-Calculate-the-Area-of-a-Rhombus-Step-6-Version-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
1
计算任意边长的平方值。由于菱形的四个边长度相等,所以你选哪个边都一样。假设边长为2cm。 2 cm x 2 cm = 4 cm2。
{"smallUrl":"https:\/\/www.zenmeban.com\/images_en\/thumb\/7\/74\/Calculate-the-Area-of-a-Rhombus-Step-7-Version-4.jpg\/v4-460px-Calculate-the-Area-of-a-Rhombus-Step-7-Version-4.jpg","bigUrl":"https:\/\/www.zenmeban.com\/images\/thumb\/7\/74\/Calculate-the-Area-of-a-Rhombus-Step-7-Version-4.jpg\/v4-728px-Calculate-the-Area-of-a-Rhombus-Step-7-Version-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
2
用得到的数值乘以其中一个角的正玄值。选择哪个角都可以。让我们假设其中一个角的正玄值为33度。用正玄值乘以4 cm2,即(2 cm)2 x sin (33) = 4 cm2 x 1 = 4 cm2。得到的结果4 cm2即这个菱形的面积。