# What is the formula for the circumference of a circle

Posted By Admin @ September 03, 2022

#### Question:

The formula for the circumference of a circle is C=2nr, r is the radius and c is the circumference. The equation solved for r=c/2n. Find the radius of a circle that has a circumference of 16 n.

r = 8

Step-by-step explanation:

The circumference of a circle is given by

C = 2 * pi *r

16 pi = 2 * pi r

Divide each side by 2 pi

16 pi /2 pi  = 2 pi r / 2 pi

8 = r

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