1: 2.94 103.5 2.025
2: 略
3: 58.5x5.2=304.2
4: 7.2 0.72 7.2 7.2 0.072
5: 0.0871 0.7752 0.63 0.0756 0.656 0.0475
6: 0.84×0.6=0.516
0.7×0.7=0.49
0.516-0.49=0.026
长方形面积大 大0.026平方米
7: 0.5×1.2=0.6 0.5×0.75=0.375
8:略
提交 重置