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。
输入输出样例
输入
无
输出
输出梯形面积(保留两位小数)。
#样例
无
无
#提示
无
You cannot submit for this problem because the contest is ended. You can click "Open in Problem Set" to view this problem in normal mode.
在梯形中阴影部分面积是150平方厘米,求梯形面积。
无
输出梯形面积(保留两位小数)。
#样例
无
无
#提示
无
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