如图,
的面积为
,以顶点
为圆心,适当长为半径画弧,分别交
,
于点
,
,再分别以点
,
为圆心,大于
的长为半径画弧,两弧交于点
,作射线
,过点
作
于点
,连接
,则
的面积是______
.
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更新时间:2021-01-12 08:51:18
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