Answer
Area = 40.5 in.
Work Step by Step
The area of the trapezoid is equal to $\frac{1}{2}$ $\times$ (b + B) $\times$ h
Area = $\frac{1}{2}$ $\times$ (5 in. + 8.5 in.) $\times$ 6 in.
Area = $\frac{1}{2}$ $\times$ (13.5 in.) $\times$ 6 in.
Area = 40.5 in.