Question

Given a sphere with volume V, the formula 

r = 0.62V

1

3

 may be used to approximate the sphere's 

radius r.

 Find the approximate radius of a sphere that has a volume of 

512 in3.


 
The approximate radius of a sphere that has a radius of 

512 in3

 is ___ in

Answer 1

Plugging 512 into the equation, we get r=0.62(512)=317.44

Solving for V, we divide 0.62 from both sides, getting r/0.62=512/0.62=around 825.8