Geometry
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1. A regular hexagon is inscribed in a circle of radius 8 inches. Find the length s of its side.
2. Find the area of a regular octagon that can be inscribed in a circle of radius 18 inches.
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(1) When a regular hexagon is inscribed in a circle, the side of the hexagon is equal to the radius of the circle. Therefore
the side of the hexagon = ...
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