Question
A wire is bent to form a square whose sides are of 66
cm. If the same wire is bent to form a circle, then find the area (in cm2) of the circle formed.Solution
Total length of the wire = 4 Ă— length of the square = 4 Ă— 66 = 264 cm So, circumference of the circle = 264Â cm Radius of the circle = {264/(2Ď€)} = {264Â Ă— 7/44)} = 42 cm Area of the circle formed = (22/7) Ă— 42Â Ă— 42Â = 5544 cm2
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