五年级上册数学学习乐园61页智慧冲浪第一题怎么做21

发布网友发布时间：2023-10-25 15:46

共5个回答

热心网友时间：2024-12-03 20:39

正方形也是一种特殊的平行四边形，平行四边的的面积都是底X高
图中平行四边形的底是0.9，高也是0.9，面积就是0.9X0.9=0.81平方分米

热心网友时间：2024-12-03 20:39

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热心网友时间：2024-12-03 20:40

平行四边形的面积就是底边*高
平行四边形的面积：0.9*0.9=0.81平方分米。

热心网友时间：2024-12-03 20:40

标准作图是学数学的关键。。。看你这图画的，唉！！！！！！

热心网友时间：2024-12-03 20:41

0.9*0.9=0.81