Calculate the lateral surface area Circular cylinder with H=5m and r= 4m

1. Identify the formula for the lateral surface area of a circular cylinder:

A_{\text{lateral}} = 2 \pi r H

2. Substitute the given values for the height of the cylinder \( H = 5 \, \text{m} \) and the radius \( r = 4 \, \text{m} \) into the formula:

A_{\text{lateral}} = 2 \pi (4) (5)

3. Calculate the result:

A_{\text{lateral}} = 40 \pi \, \text{m}^2

So, the lateral surface area of the circular cylinder is 40 \pi \, \text{m}^2 .