Answer:
r = [tex]\frac{31.4}{\pi}[/tex]
Step-by-step explanation:
First you have your equation: 62.8 = 2[tex]\pi[/tex]r
Divide both sides by 2 because you are looking for r. You will get:
31.4 = \pi r
Now divide both sides by pi to get:
r = [tex]\frac{31.4}{\pi}[/tex]