The formula for the circumference of a circle is c=pi r where r is the radius and c is the circumference. The equation solved fo
r r is r=c/2pi. Find the radius of a circle that has a circumference of 16pi.
A. r=4
B. r=8
C. r=12
D. r=16
1 answer:
Answer:
B. r=8
Step-by-step explanation:
r=c/2pi
We are given c = 16 pi
r = 16pi / 2pi
The pi on the top and bottom cancel
r = 16/2
r =8
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