An artist wants to frame a square painting with an area of 400 square inches. She wants to know the length of the wood trim that is needed to go around the painting.
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Area of the square picture is 400 as inch. So side of the picture is √400 Side of the square =√ area =√ 400 √400=√20*20 Side = 20 inch Total length of wood trim needed = perimeter of the square=4* side So 4* 20 inch= 80 inches ANS
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