试题与答案

一面三角形小彩旗底是15厘米,高比底少3厘米,它的面积是()平方厘米。

题型:填空题

题目:

一面三角形小彩旗底是15厘米,高比底少3厘米,它的面积是(    )平方厘米。

答案:

90

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