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Question
The perimeter of a square and the circumference of a circle are equal. If the length of each side of the square is 22 cm, find:
(i) perimeter of the square.
(ii) circumference of the circle.
(iii) radius of the circle.
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Solution
(i) Side of square = 22 cm
Perimeter of square = 4 × side
= 4 × 22 = 88 cm
(ii) Circumference of circle
Given, Perimeter of square = Circumference of circle
= 88 cm
(iii) Circumference of circle = 88 cm
∴ Radius =`"C"/(2π)=(88xx7)/(2xx22)=616/44` =14 cm
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