Question 390377
{{{V=(1/3)*pi*r^2*h}}} Start with the volume of a cone formula.



{{{V=(1/3)*pi*(9)^2*(12)}}} Plug in {{{r=9}}} and {{{h=12}}}



{{{V=(1/3)*pi*(81)*(12)}}} Square 9 to get 81.



{{{V=(1/3)*pi*(972)}}} Multiply 81 and 12 to get 972.



{{{V=324pi}}} Multiply {{{1/3}}} and 972 to get {{{972/3=324}}}.



So the volume is {{{324pi}}} cubic units.



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