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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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