Question

How do you find the area

Answer 1

Divide the box in a box and rectangle then multiply and add. 
3 x 3 = 9
3 x 6 = 18  ( the six came from adding 3 + 3 on the top of the rectangular part)
18 + 9 = 27in^2

Answer 2

27 in. squared
you divide the shape into 2 shapes, a rectangle and a square. 
Area of the rectangle: (3+3)3=18
Area of the square: 3*3=9
18+9=27