数学题:求大阴影部分的面积
- 时间:2020-05-12 13:38:15
- 分类:数学世界
- 阅读:149 次
数学题:如图所示,已知半圆的直径AB=12,BC所对的圆心角∠CAB=30度,并且小阴影部分的面积为3.26,求大阴影部分的面积。

数学题解答:(由六年级数学①群樱花同学解答)

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