图形 | 底/cm | 高/cm | 面积/cm2 |
平行四 边形 | 12 | 5 | __ |
2.4 | __ | 6 | |
三角形 | 2.5 | 1.2 | __ |
15 | __ | 24 | |
梯形 | 上底4.5 下底5.5 | 9 | __ |
上底26 下底34 | __ | 360 |
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A.4倍 | B.2倍 | C.一半 |