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प्रश्न
The perimeter (in cm) of a square circumscribing a circle of radius a cm, is
विकल्प
A. 8 a
B. 4 a
C. 2 a
D. 16 a
उत्तर
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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