Mathematics

Problem

A solid is made by placing a right circular cone on the top of a cylinder of the same radius

4\,

cm. The height of the cylinder is

6\,

cm and the height of the cone is

8\,

cm. Calculate the curved surface area of the entire solid (use

\pi = 3.14

). a)

251.2\,\text{cm}^2

264\,\text{cm}^2

313.3\,\text{cm}^2

237.7\,\text{cm}^2