Question

What is c=2πr solve for r.

Answer 1

C = 2(pi)r if you are solving for r all other constants must be removed using the inverse operation. Since the 2 and pi are multiplying with r, we must divide each side by 2 pi. So the result would be c ÷ (2 pi).

Answer 2

R=C/2pi since you divide 2pi on both sides to get R byitself.