Question

Could you help me figure out the left/right facesortop/bottom faces

Answer 1

Explanation

The question requires that we figure out the sides that represent the top/bottom faces and the left/right faces.

We are given the plan of the aluminum sheet

The top, bottom, left and right faces are shown below

The dimension for the top and bottom is

$1.5ft\times5ft=7.5ft^2$

Since they are two

Therefore the total area for the top and bottom will be

$2\times7.5ft^2=15ft^2$

For the left and right faces, the dimensions are

The dimensions of the left and right faces will be

$\text{1}.25ft\times5ft=6.25ft^2$

Since they are two, then

The area will be

$6.25ft^2\times2=12.5ft^2$