dunhambrooke
dunhambrooke dunhambrooke
  • 04-09-2017
  • Mathematics
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How do I do this problem?

How do I do this problem class=

Respuesta :

wikk
wikk wikk
  • 04-09-2017
The formula for the circumference of a circle:
C = 2(π)(r)

To solve for r, just divide both sides by 2π.
C/2π = r

For this problem, you are given the C, so plug that into the equation.
8π = 2(π)(r)

Now to solve for r, just divide both sides by 2π
4 = r

The radius of the circle is 4.
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