Answer:
169 square inches
Step-by-step explanation:
You want the total surface area of a brick with dimensions 8 in by 5.5 in by 3 in.
Formula
The formula for the surface area of a rectangular prism can be written as ...
A = 2(LW +H(L+W))
Application
Using the given dimensions, we find the area to be ...
A = 2((8 in)(5.5 in) + (3 in)(8 in +5.5 in)) = 2(44 in² +(3)(13.5) in²)
= 2(44 in² +40.5 in²) = 2(84.5 in²)
= 169 in²
The total surface area to be painted is 169 square inches.
