Math Help - Volume of a cone

1. Volume of a cone

$10=\frac{1}{3} \pi r^2 \cdot 1.5$

$\frac{10}{1.5} \cdot 3=\pi r^2$

$\frac{(\frac{10}{1.5} \cdot 3)}{\pi}=r^2=6.366$

$\sqrt{6.366}=r=2.52$

Correct?

2. Originally Posted by Mukilab
$10=\frac{1}{3} \pi r^2 \cdot 1.5$
$\frac{10}{1.5} \cdot 3=\pi r^2$
$\frac{(\frac{10}{1.5} \cdot 3)}{\pi}=r^2=6.366$
$\sqrt{6.366}=r=2.52$