Please answer

Question

a floor game uses a grid comprised of two dark gray and two white squares. If each floor grid has 4 squares, and the side of each square in the grid is represented by 3a, write the expression that represents the area of the entire 4 square floor grid.

Answer 1

  -----------------

 |        |        |

 |        |        | 3a

 ------------------

 |        |        | 3a

 |        |        |

 ------------------ 

    3a      3a

 

The 4 squares together create a square floor grid 6a on a side.

The area of a floor grid is (6a)² = 36a²