Find the circumference of the circle with the following radius (Take π=227) 21 cm - Mathematics

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Sum

Find the circumference of the circle with the following radius (Take `pi = 22/7`)

21 cm

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Solution

r = 21 cm

Circumference = 2πr = `2 xx 22/7 xx 21`

= 132 cm

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Chapter 11: Perimeter and Area - Exercise 11.3 [Page 223]

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NCERT Mathematics Class 7
Chapter 11 Perimeter and Area
Exercise 11.3 | Q 1.3 | Page 223

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