Respuesta :

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]