Martha measures the big prize wheel on a game show and calculates that it has a circumference of 12.56 yards. What is the prize wheel's radius?

Respuesta :

The radius is 2 yards... 
Formula for circumference is [tex] \pi r^2[/tex] so divide your circumference by 3.14 or pi and you get 4 the square root of 4 is 2. 

Hope this helps!