Question

Find the surface area and volume of the following solids , a cylinder with radius 5 m and height 0.5 m

Answer 1

The radius of the cylinder is 5 m and the height is 0.5 m.

Then, the total surface area is

`\begin{gathered} A=2\pi r(r+h) \\ =2\pi(5)(5+0.5) \\ =55\pi\text{ squared meter} \end{gathered}`

So, the surface area is

`55\pi=172.79\text{ squared meter}`

Now, the volume is

`\begin{gathered} V=\pi(r^2)h \\ =\pi(5)^2(0.5) \\ =39.27\text{ cubic meter} \end{gathered}`

So, the volume of the cylinder is 39.27 cubic meters.