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A wire is in the shape of a square of side 10 cm. If the wire isrebent into a rectangle of length 12 cm, find its breadth. Which enclosesmore area, the square or the rectangle? |
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Answer» perimeter of square `= 10 xx 4 = 40cm` perimeter of rectangle = `2(l+b)` `40 = 2(12+b)` `b + 12 = 20` `b = 8cm` area of rectangle = `l xx b` `= 12 xx 8 = 96 cm^2` `area of square = 10^2 = 100 cm^2` `:.`square `>` rectangle answer |
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