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The figure shows part of a circle with two inscribed regular polygons—one with $$6$$ sides and one with $$12$$ sides. The two polygons have $$6$$ vertices in common. The radius of the circle is $$r$$, and the area of the $$6$$-sided polygon is $$x$$.
Quantity A
$$\pi r^2-x$$
Quantity B
$$24$$ times the area of the shaded region $$S$$
A显示答案
· 相关考点
4.2.2 正多边形
4.2.2 正多边形
以上解析由 考满分老师提供。