please help, easy geometry

Answer:
Step-by-step explanation:
There are a few ways to go about doing this problem. One method would to divide the shape into two triangles and a rectangle and then find the area of those shapes and then add them all up. I am not going to do that because that is the long way to solve this problem.
With that said, you can use the trapezoid formula
[tex]A = h*\frac{b1 + b2}{2}[/tex]
b1 = 3
b2 = 11
h = 9
Plugin the data into our model and do the math.
[tex]A = h*\frac{b1 + b2}{2}[/tex]
[tex]A = 9*\frac{3 + 11}{2}[/tex]
[tex]A = 9*\frac{14}{2}[/tex]
[tex]A = 9 * 7 [/tex]
[tex]A = 63 \ yd^2[/tex]