Split the figure into 3 shapes: a trapezoid,a rectangle and a triangle
Area of trapezoid
A= 1/2(b1+b2) h
A = 1/2(3 +9)(8)
A = 1/2(12)(8)
A = 48 square units
Area of rectangle:
A = L x W
A = 9 x 8
A = 72 square units
Area of triangle
A = 1/2bh
A = 1/2(3)(8)
A = 12 square units
Area of figure = 48 square units + 72 square units + 12 square units
= 132 square units
Answer
132 square units