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Help with a few more

NotSoSmart  May 8, 2017
 #1
avatar+87301 
+1

 

The radius  of the rim = 18/2  =   9 inches

 

So.....we need to find the radius of the ball

 

Circumference  = 2 * pi * radius

 

30   =  2 * pi  *  radius        divide both sides by *pi

 

30  / ( 2 * pi)   =  r  = 15/ pi  inches

 

So  the distance between the rim and the ball  =

 

[ 9  -  15/pi ] inches  ≈  4.225  inches

 

 

cool cool cool

CPhill  May 8, 2017

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