Find the perimeter (in cm) of a square circum scribing a circle of radius a cm.
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- Given, square circumscribes a circle of radius a cm.
- Side of the square = 2 x radius of circle = 2a cm.
- Now, perimeter of the square = (4 x 2a) = 8a cm.
- Perimeter of the square is 8a cm.
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