练7.4梯形面积

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题目

在梯形中阴影部分面积是150平方厘米,求梯形面积。

image

输入输出样例

输入

输出

输出梯形面积(保留两位小数)。

#样例

#提示

大明

Not Attended
Status
Done
Rule
ACM/ICPC
Problem
38
Start at
2025-2-11 16:00
End at
2025-2-28 8:00
Duration
400 hour(s)
Host
Partic.
7