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三角形的底是12分米。高是20厘米面积是多少厘米
三角形的底是12分米。高是20厘米面积是多少厘米
2025-04-07 00:55:10
推荐回答（1个）
回答1：
三角形的面积计算公式是底乘以高除以2
现在底和高的单位不同，首先我要把它们化成相同单位下的数值
底是12分米，12分米也就是120厘米
所以S=120*20/2=1200平方厘米 面积单位是平方厘米
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