Mathematics

Problem

A solid is formed by attaching a hemisphere of radius

7\,\text{cm}

to the base of a right circular cone of height

24\,\text{cm}

and the same radius. The flat circular base of the cone is left unpainted. Using

\pi = \dfrac{22}{7}

, determine the total curved surface area to be painted (in

\text{cm}^2

). a)

1\,012\text{ cm}^2

704\text{ cm}^2

858\text{ cm}^2

836\text{ cm}^2