A Wire in the shape of a square, with each side equal to 15.5 cm, is bent into the shape ofa circle. Find the circumference and the diameter of the circle.
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Side of square = 15.5 cm
Perimeter = 15.5×5 = 62 cm
Circumfirance = Perimeter .
Circumfirance = 2πr.
62 = 2 × 22/7 × r
r = 62 × 7 / 44 .
Radius = 9.86 cm
Diameter = 2 × 9.86 = 19.72 cm
Circumfirance = 62 cm.
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