Question

The lateral surface area (in sq. units) of the the rectangular prism as shown in the diagram is

• A. 80

Answer 1

The correct option is A 80

We know for calculating the lateral surface areas of a rectangular prism, we ignore the areas of the top and the bottom surfaces.
$\therefore$ The lateral surface area of the rectangular prism is:
$=4\times 5+4\times 5+4\times 5+4\times 5$ sq. units
$=20\times 4=80$ sq. units