freeCodeCamp/guide/chinese/mathematics/area-of-a-parallelogram/index.md

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---
title: Area of a Parallelogram
localeTitle: 平行四边形的面积
---
## 平行四边形的面积
平行四边形是四边形图,其中相对的边和角度相等。它可以被认为是由两个相同的三角形组成,基部与基部相连。 ![替代文字](http://www.onemathematicalcat.org/Math/Geometry_obj/graphics/area_parallelogram.bmp)
三角形的面积是`1/2 * base * height` ,平行四边形的面积是两个相同三角形的面积的相加。 因此,
### 例
考虑一个平行四边形,如图所示。 ![替代文字](http://www.proprofs.com/quiz-school/upload/yuiupload/812246308.jpg)
因此Area = 6 \* 2.5 = 15m^ 2
#### 更多信息:
有关详细信息,请访问[wiki](https://en.wikipedia.org/wiki/Parallelogram)