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对于正多边形面积与有关圆面积的比值,我们进行如下的研究与探讨.例1求等边三角形的内切圆与外接圆的面积比.解设等边三角形ABC的内切圆与外接圆
For the ratio of the area of the regular polygon to the area of the circle, we conduct the following research and discussion. Example 1 Find the area ratio of the inscribed circle and the circumscribed circle of an equilateral triangle. Solve the inscribed circle and circumcircle of the equilateral triangle ABC