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Circumference of a Circle

Find the peri...

Question

Find the perimeter of a circle whose radius is 7 cm (in cm)

A

12 π

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B

14 π

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C

16 π

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D

10 π

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Solution

The correct option is B $14 π$
Perimeter of a circle $= 2 π r$ , where r is the radius of the circle
So, perimeter of the given circle $= 2 \times π \times 7 = 14 π$

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