What is the area of the composite shape?

Answer:
290[tex]mi^{2}[/tex]
Step-by-step explanation:
You can divide this shape in a variety of ways, but I am going to divide it into a rectangle and a square. First, to find the area of the square, multiple 6 by 5, and get 30[tex]mi^{2}[/tex]. Next, to find the area of the big rectangle, multiply 20 by 13 and get 260[tex]mi^{2}[/tex]. Finally, add 30 and 260 and get a final answer of 290[tex]mi^{2}[/tex].