Find the area of the regular decagon if the apothem is 2.8 ft. and a side is 1.8 ft. Round to the nearest whole number.
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Answered by justycesloan
Perimeter = 1.8 * 10 = 18 Area = (1/2)(perimeter)(apothem) Area = (1/2)(18)(2.8) Area = 25.2