What is the area of the trapezoid?

Answer:
24 units ²
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A = [tex]\frac{1}{2}[/tex] h (a + b)
where h is the perpendicular height and a, b the parallel bases
Counting the squares in the diagram gives
h = 4, a = 4, b = 8, thus
A = [tex]\frac{1}{2}[/tex] × 4 × (4 + 8) = 2 × 12 = 24 units²