Question

A toy is in the form of a cone of radius3.5cm. Find the total surface area of the toy rounded off to the nearest integer.

Answer 1

Hint: - Curved surface area of conical part=πrl
So, this is the required curved surface area.
Note: - In such types of questions first always draw the pictorial representation of the given problem then calculate the slant height of the conical part, then find out the total curved surface area which is the addition of Curved surface area of conical part and curved surface area of hemispherical part, then simplify we will get the required curved surface area.