The radius of a circular field and the side length of a square field are the same. Find the ratio of their perimeters. Take pi as 22 by 7.

A2 : 1

B1 : 2

C4 : 7

D11 : 7 ✓ Correct

Correct answer: (D) 11 : 7

Explanation

The ratio of perimeters is 11 : 7.

Let radius = side = r; circle perimeter = 2 pi r.

Square perimeter = 4r.

Ratio = 2 pi r : 4r = pi : 2 = (22/7) : 2.

Simplifying = 22 : 14 = 11 : 7.

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