Math
posted by Ely .
Under the rules of the United States Golf Association the volume of a golf ball cannot be less than 2.48 cubic inches.
A. calculate the radius of this golf ball.
B. Calculate the circumference of this golf ball
*Please help i don't know how to do this!!*

Math 
Reiny
(4/3)πr^3 ≥ 2.48
r^3 ≥ .592056...
r ≥ .8397 inches
circumference of ball is the circumference of circle with radius .8397
= 2πr
= 5.276 inches
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