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CBSE Class 7 Answered

The circumference of a circle exceeds its radius by 37cm. Find the diameter of the circle. 
Asked by Misssharma1914 | 14 Jan, 2019, 05:56: PM
answered-by-expert Expert Answer
If r is radius, circumference is 2πr 
 
Hence,  2πr = r+37  ie r = 37/(2π-1)
 
hence diameter, 2r  = 74/(2π-1) ≈ 14 cm
Answered by Thiyagarajan K | 15 Jan, 2019, 07:28: AM

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