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Question -

The circumference of a circle exceeds the diameter by 16.8 cm. Find the circum¬ference of the circle. (C.B.S.E. 1996)



Answer -

Let r be the radius of the circle
∴  Circumference = 2r + 16.8 cm
⇒  2πr = 2r + 16.8
⇒  2πr – 2r = 16.8

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