SOLUTION: Find the approximate difference in volumes between two spheres. One has a radius of 6 cm, and the other has a radius of 12 cm. So i did all of my work but i don't know how to find

Algebra ->  Bodies-in-space -> SOLUTION: Find the approximate difference in volumes between two spheres. One has a radius of 6 cm, and the other has a radius of 12 cm. So i did all of my work but i don't know how to find       Log On


   

Question 957421: Find the approximate difference in volumes between two spheres. One has a radius of 6 cm, and the other has a radius of 12 cm. So i did all of my work but i don't know how to find the difference ( for the 6 cm i got 904.3( and for the 12 cm o got 7234.5)) so can you help me ?
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
Volume 12 cm sphere=%284%2F3%29%28pi%29%2812%5E3cm%5E3%29=7238.2cm%5E3
Volume 6 cm sphere=%284%2F3%29%28pi%29%286%5E3%29=904.8cm%5E3
Difference=7238.2cm%5E3-904.8cm%5E3=6333.4cm%5E3