试题与答案

一个三角形的底是x厘米,高是13厘米,这个三角形的面积是( )平方厘米。

题型:填空题

题目:

一个三角形的底是x厘米,高是13厘米,这个三角形的面积是(    )平方厘米。

答案:

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