An irregular polygon is shown below:
The area of the irregular polygon is
square units.

Answer:
15 units²
Step-by-step explanation:
The figure is composed of 2 rectangles.
The rectangle on the left has
A = 4 × 3 = 12 units²
The rectangle on the right has
A = (3 - 2) × (7 - 4) = 1 × 3 = 3 units²
Thus area of figure = 12 + 3 = 15 units²