# Math

An equilateral triangle of side 20cm is inscribed in a circle. Calculate the distance of a side of the triangle from the center of the circle.

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1. the center of the triangle is 2/3 of the distance from a vertex to the opposite side (2/3 of the height of the triangle)

so the distance from the center of the circle to a side of the triangle is 1/3 the height of the triangle

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