Question

S=_ft ?? Please also tell me how to do it

Answer 1

`70ft^2`

Explanation:

Surface area is the sum of all sides of the area. Since it is a rectangular prism, each surface area will be multiplied by two to account for the opposite side (ex. top and bottom are the same area).

The front/back area is
`1*11` or 11. So the sum of the areas is 22.

The right/left area is
`2*1` or 2. So the sum of the areas is 4.

The top/bottom area is
`2*11` or 22. So the sum of the areas if 44.

We add these together to find the surface area.

`22+4+44=70`

The surface area is
`70ft^2`