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Circumference ‘C’ of a circle can be found by multiplying diameter ‘d’ with ______.

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Question

Circumference ‘C’ of a circle can be found by multiplying diameter ‘d’ with ______.

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Solution

Circumference ‘C’ of a circle can be found by multiplying diameter ‘d’ with π.

Explanation:

∵ Circumference = 2πr

Since, diameter (d) = 2r

So, C = π × d

Hence, π is the answer.

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Chapter 9: Perimeter and Area - Exercise [Page 276]

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NCERT Exemplar Mathematics [English] Class 7
Chapter 9 Perimeter and Area
Exercise | Q 48. | Page 276

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