如图,四边形ABCD中,AB=4cm,BC=3cm,CD=12cm,DA=13cm,且∠ABC=90°,则四边形ABCD的面积为( )
![](https://img.xkw.com/dksih/QBM/2017/12/3/1830629530124288/1832563885015040/STEM/2d3294ca0d5f4b2a9972edf12be47af3.png?resizew=104)
![](https://img.xkw.com/dksih/QBM/2017/12/3/1830629530124288/1832563885015040/STEM/2d3294ca0d5f4b2a9972edf12be47af3.png?resizew=104)
A.6cm2 | B.30cm2 | C.24cm2 | D.36cm2 |
更新时间:2017-11-10 14:26:46
|
【知识点】 构造直角三角形求不规则图形的边长或面积
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