Question

Find the lateral area of the cylinder .The lateral area of the given cylinder is _ m2.Round to the nearest whole number as neared .)

Answer 1

In order to calculate the lateral area of the cylinder, we can use the formula:

$S=2\pi rh$

The diameter of the cylinder is 4 meters, so the radius is 2 meters. Also, the height is 12 meters, so we have:

$\begin{gathered} S=2\pi\cdot2\cdot12 \\ S=48\pi \\ S=150.8 \end{gathered}$

Rounding to the nearest whole number, the lateral area is 151 m².