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Question

Calculate the perimeter of a circle (of radius 'r') and a square (of side 'a').


A

2πr, 4a

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B

πr, 4a

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C

2πr, 2a

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D

4πr, 4a

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Solution

The correct option is A

2πr, 4a


Consider 'r' as the radius of the circle and 'a' as the side length of the square.
Then, Perimeter of circle = 2
πr
Perimeter of square = 4a


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