coco1231 coco1231

05-02-2017
Mathematics

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what is the circumference of a circle that is 16pi. what's its radius?

what is the circumference of a circle that is 16pi whats its radius class=

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mrinconj mrinconj

05-02-2017

The circumference, perimeter or length of a circle is:
L = 2*pi*r (r=radius)
Replace L=16pi into the formula and solve for r:
16pi = 2*pi*r
r= (16pi)/(2pi) = 16/2 = 8
The radius is 8

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jessicagotthejuice jessicagotthejuice

05-02-2017

The radius is 8 because circumference is equal to pi times the diameter and since the diameter is 16, then the radius is 8

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