∵S△ADC=5×2÷2=5,S△ABC=5×3÷2=7.5,
∴四边形ABCD的面积=S△ADC+S△ABC=5+7.5=12.5.
如图,每个小方格的边长都为1.求图中格点四边形ABCD的面积.
如图,每个小方格的边长都为1.求图中格点四边形ABCD的面积.
数学人气:677 ℃时间:2019-10-23 03:36:56
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