The circumference of the base of a 12 m high conical tent is 66 m. Find the volume of the air contained in it.
Circumference of the base =66m
Height of the tent =12m
Circumference of the circle =2πr
66=2∗227∗r
66∗72∗22=r
r=10.5m
Volume of the cone =13πr2h
=13∗227∗10.5∗10.5∗12
=1386m3
So, the volume of the air contained in it is =1386m3