Find the volume of a cone- radius 10 mm, height 30 mm

Hello.

"The volume of a cone is (Pi)r2h/3. Essentially it uses the formula
for the volume of a cylinder and divides it by 3."
source: MathWizz
http://www.mathwizz.com/geometry/help/help2.htm

Here the radius (r) is 10 mm, while the height (h) is 30 mm.

So... 

Volume = (Pi(r^2)h)/3  
       = (Pi(10^2)30)/3 
       = (Pi(100)30)/3
       = (3000Pi)/3
       = 1000Pi cubic mm
       = 3141.59 cubic mm

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search strategy:
"volume of a cone", radius, height

I hope this helps.