Answer :
Circumference Formula: 2pi x r
Radius = 20.5
Plug it in:
2(3.14) x 20.5
6.28 x 20.5 = 128.74
Then, convert to pi terms.
128.74 = 41 pi
Therefore the circumference of a circle with a radius of 20.5m is 41pi.
Circumference Formula: 2pi x r
Radius = 20.5
Plug it in:
2(3.14) x 20.5
6.28 x 20.5 = 128.74
Then, convert to pi terms.
128.74 = 41 pi
Therefore the circumference of a circle with a radius of 20.5m is 41pi.