Posted by **ryan** on Friday, December 23, 2011 at 11:08pm.

can someone help me please on this question:

What is the diameter of a cone with height 8 m and volume 150 m3 ?

- geometry -
**Max**, Saturday, December 24, 2011 at 1:35am
V = pi*r^2*h

V = 150 m^3

h = 8 m

150 = pi*r^2*8

Solve for r (the radius) then multiply by 2 to obtain the diameter.

- geometry -
**Steve**, Saturday, December 24, 2011 at 11:40am
Only, this is a cone, not a cylinder.

V = 1/3 pi r^2 h

- Geometry -
**Zazzle**, Monday, May 6, 2013 at 12:03pm
The answer is 15m

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