A sheet of paper measures 40 cm x 20cm . If a strip 4 cm wide is cut from it all around, find the area of strip cut out and area of remaining sheet of paper
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Step-by-step explanation:
area of original = 40(20) =800 cm^2
after cutoff, new size is 32 by 12
area of that = 32(12) = 384 cm^2
area of strip cut out = 800-384 = 416 cm^2
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