The radius of the regular pentagon is about 6.8 inches and each side is 8 inches. Find the area and round to the nearest square inch.

central angle of pentagon is 360/5 = 72

area of each sector is 1/2(6.8)(6.8)sin72 = 22 sq.in

there are 6 sectors: 6(22) = 132 sq.in

OOPS, sorry! There are FIVE sectors in a pentagon, not six.

So, the answer is 5(22) = 110 sq.in

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