Each side of a regular polygon is 7.2 cm. The perimeter of the polygon is 64.8 cm. Find the number of sides of the polygon.
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he perimeter of a regular polygon is the sum of the lengths of all its equal sides = 12.5 cm. Length of each side = 2.5 cm. Thus, the number of sides = 12.5 2.5 = 125 25 = 5 . The polygon has 5 sides.
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