#### Answer

Area = 22 square yds

#### Work Step by Step

The area of the trapezoid is equal to $\frac{1}{2}$ $\times$ (b + B) $\times$ h
Area = $\frac{1}{2}$ $\times$ (4 yd + 7 yd) $\times$ 4 yd
Area = $\frac{1}{2}$ $\times$ (11 yd) $\times$ 4 yd
Area = 22 square yds