How Do You Calculate Diameter from Volume?

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To calculate the diameter of a sphere from its volume, the formula V = (4/3)π(d/2)³ is used. By rearranging this formula, the diameter can be expressed as d = ∛(6V/π). There was a brief discussion about potential confusion between squaring and cubing in the calculations. The importance of using the correct root in the formula was emphasized. Understanding these mathematical relationships is crucial for accurate calculations.
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Simple Question: Volume --> Diameter

I know how to find volume using diameter, but how do you find diameter using volume?
 
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The volume of what? A sphere? A cylinder? A cone?

cookiemonster
 
..whoops...yeah, a sphere. How do you find the diameter of a sphere using the volume?
 
V = \frac{4}{3}\pi \Big(\frac{d}{2}\Big)^3

That's the formula for the volume of a sphere in terms of the diameter. Now just solve for d!

d = \sqrt[3]{\frac{6V}{\pi}}

cookiemonster
 
Last edited:
Cookiemonster probably meant to cube his radius, not to square it, and thus also to use a cube root, not a square root. This would change his final formula slightly.
 
Last edited:
Hah, hah, hah... Did I do that?

cookiemonster
 
Thanks for the help cookiemonster...
 
Gah... Minor details.

cookiemonster
 

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