dylangiraldo dylangiraldo 23-01-2019 Mathematics contestada The formula for the circumference of a circle is C= 2pir where r is the radius and c is feb circumference. The equation solved force 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