Question

Express the volume of a cone, V, as a function of its radius, r, if the radius is 1/3 of the height.
I have tried (1/9)*pi*r^2 but it did not work.

Answer 1

\[V=\frac{ 1 }{ 3 } *\pi r^2h\]
r=h/3

h=3r
plug in this equation for h and you will get your answer

Answer 2

So would the answer be V=pi^3?

Answer 3

that's what i got

Answer 4

oops
V=pi*r^3

Answer 5

Thanks! Haha yeah I forgot to put in the r oops