Question

Find the lateral area for the cylinder with the given measurement. r = 4, h = 5 20 square units 40 square units 80 square units

Answer 1

`\bf \textit{lateral area of a cylinder}\\\\ LA=2\pi rh\quad \begin{cases} r=radius\\ h=height\\ -----\\ r=4\\ h=5 \end{cases}\implies LA=2\pi (4)(5)\implies LA=40\pi`

Answer 2

Answer: 40π square units

Step-by-step explanation: since, lateral area of cylinder=2πrh

where r=radius=4 and h=height=5

⇒ lateral area= 2π×4×5

= 40π square units