The number of surfaces of a cone has, is (a)   1       (b)  2        (c)  3       (d)  4

Explanation

1. The base of the cone is a flat face which is a circle hence the base area of a cone is nothing but the area of this circle.

2. A cone is a three-dimensional shape.

3.The surface area of a cone is the space occupied by the curved surface and the base surface of the cone.

For example= ice cream, conical vessel and conical tent etc.

Hence, the number of surfaces of a cone has 2.