A cone is a geometric shape that is obtained by rotating a right triangle around its leg.

The formula for the area of the entire surface of the cone
where R is the radius of rotation, L is the length of the generatrix.

A cone is a geometric shape that is obtained by rotating a right triangle around its leg.

The formula of the area of the lateral surface of the cone
where R is the radius of rotation, L is the length of the generatrix.