Diameter of a teepee pile is $\"\"$ .

The radius of the cone is $\"\"$ .

$\"\"$

A teepee is a conical tent.

The slant height of a teepee is $\"\"$ .

Find the area of canvas covering for the exterior of the teepee.

Exterior area of the teepee is lateral surface of the cone.

Lateral surface area of the cone is $\"\"$ .

Substitute $\"\"$ and $\"\"$ ft in $\"\"$ .

$\"\"$

$\"\"$ .

Area of canvas covering for the exterior of the teepee is $\"\"$ .