Mathematics

Problem

A cylindrical vessel of radius

7\,\text{cm}

and height

20\,\text{cm}

has a hemispherical bottom of the same radius. The vessel is open at the top. Using

\pi = \dfrac{22}{7}

, find the outer surface area that must be painted (in

\text{cm}^2

). a)

1034

1342

1188

968