题型:解答题-问答题
难度:0.65
引用次数:544
题号:8581141
如图所示,每个小正方形的边长为1cm
(1)求四边形ABCD的面积;
(2)四边形ABCD中有直角吗?若有,请说明理由.
(1)求四边形ABCD的面积;
(2)四边形ABCD中有直角吗?若有,请说明理由.
![](https://img.xkw.com/dksih/QBM/2019/7/25/2254493447864320/2255021480894464/STEM/707706839e8348598c4d80e0ffd55b2c.png?resizew=223)
更新时间:2019-07-26 09:55:51
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