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Q.

The perimeter (in cm) of a square circumscribing a circle of radius a cm, is [[1]].

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answer is 8A.

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Detailed Solution

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The radius of the circle is given as a cm.

∴ Diameter of the circle = 2 × a cm = 2a cm

Side of the circumscribing square = Diameter of the circle = 2a cm

Perimeter of the circumscribing square = 4 × 2a cm = 8a cm

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