Question

Total surface area of frustum of a cone is
full solve​

Answer 1

Frustum of a cone:

Cut a right circular cone with a plane parallel to the base of the cone, then the solid shape between the plane and the base of the cone is called the frustum of a cone.

e.g. Flower pots have a shape as the frustum of a cone.

The surface area and the volume of the frustum of a cone can be calculated using standard formulae.

CSA of the frustum of a cone = πl( r1 + r2).

where r1 = radius of the larger circular face of the frustum, r2 = radius of the smaller circular face of the frustum, and l = slant height of the frustum.

l = h2+(r1-r2)2 and h is the height of the frustum.

TSA of a frustum of a cone = πl(r1 + r2) + πr12 + πr22

Volume of the frustum of a cone = (1/3) πh (r12 + r22 + r1 r2)