Answer:
13 square units
Explanation:
Look at image attached
Divide shape into two rectangles
Rectangle 1:
width: 2 units
length: 5 - 1 = 4 units
AREA: 2 x 4 = 8 sq. units
Rectangle 2:
width: 1 units
length: 5 units
AREA: 1 x 5 = 5 sq. Units
Combine area of rectangles:
8 + 5 = 13 sq. Units
That is the area of the whole polygon.