Maharashtra State BoardSSC (English Medium) 7th Standard

If the Circumference of a Circle is 176 Cm, Find Its Radius. - Mathematics

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Sum

If the circumference of a circle is 176 cm, find its radius.

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Solution

Circumference  = 176 cm
Circumference = 2πr ..........(where 'r' is the radius of circle)
176 = `2xx22/7xx"r"`
176 × 7 = 2 × 22 × r

1232 = 44r

`1232/44` = r

r = 28 
∴ The radius of the circle = 28 cm

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Chapter 11: Circle - Practice Set 42 [Page 77]

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Balbharati Mathematics 7th Standard Maharashtra State Board
Chapter 11 Circle
Practice Set 42 | Q 2 | Page 77

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