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# Rearrange formula for volume of a sphere. watch

1. I know the volume of the sphere - or at least I think I do :P

π = pi

I have the volume as 300π

and I'm wondering if I can rearrange the formula:

4/3 πr³ = 300π

to make "r" the subject as I need to find the radius of the sphere.

(I tried to rearrange and completely failed xD I got 5.62 as the radius)
2. I get 6.08. The pi cancels outs, 300 divided by 4/3, and then cube root.
3. Cancel the Pis, move 3 over, and 4 down, then cube root.
4. Yeah that sounds very reasonable - so you get this

right?

This gives me 6.08 as answer....

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Updated: January 18, 2010
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