Type: RemoteJudge 1000ms 256MiB

练7.4梯形面积

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题目描述

在梯形中阴影部分面积是150平方厘米,求梯形面积。

![image](file://wgG3EbN5kAvZtM-nUTJLh.png)

输入格式

输出格式

输出梯形面积(保留两位小数)。

样例

1.17

Not Attended
Status
Done
Rule
OI
Problem
16
Start at
2026-1-17 10:00
End at
2026-1-17 12:00
Duration
2 hour(s)
Host
Partic.
0