Question

I don’t know how to do this or the answer I need help

Answer 1

Given:

The radius, r=4cm.

The height, h=9cm.

To find the surface area of the cylinder:

The surface area of the cylinder is,

`\begin{gathered} A=2\pi rh+2\pi r^2 \\ =2\pi*4*9+2\pi*4^2 \\ =72\pi+32\pi \\ =104\pi cm^2 \end{gathered}`

Thus, the surface area of the cylinder is,

`104\pi cm^2`