Question
A wire is bent to form a square whose sides are of 132
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 × length of the square = 4 × 132 = 528 cm So, circumference of the circle = 528 cm Radius of the circle = {528/(2π)} = {528 × 7/44)} = 84 cm Area of the circle formed = (22/7) × 84 × 84 = 22176 cm2
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