Question

the circumference of the base of a 9m conicle tent is 44m. find the volume of the air in it

Answer 1

$2\pi \: r = 44 \\ r = \frac{44}{2\pi} = 7$
$volume = \frac{1}{3} \pi {r}^{2} h \\ = \frac{1}{3} \times \frac{22}{7} \times {7}^{2} \times 9 = 462 \: {m}^{3}$