Answer:
[tex]A_t=2B^3 \ cm^2[/tex]
Step-by-step explanation:
Area Of Squares
The area of a square of side length B centimeters is
[tex]A=B^2 \ cm^2[/tex]
If we have two rows, each one containing B of those squares, then the total area is
[tex]A_t=(2B)A=(2B)B^2 \ cm^2[/tex]
Simplifying
[tex]\boxed{A_t=2B^3 \ cm^2}[/tex]