Question

Circumference = 2πr
Circumference = 30
All I know so far is , 30 = 2πr

Answer 1

divide both sides by 2pi to solve for r.
r=30/2pi=4.77

Answer 2

so you would solve for r.
r=30/2pi
r=4.774648293

Answer 3

I have to show my work though , that's the problem.. I don't know how. Is this how.. (hold on let me draw what im randomly doing)

Answer 4

that's all I know.