Answer
110.5
Explanation
The formula for a trapezoid is
(B1+b2)h
A=—————-
2
So your first base is 8 and your second base is 9 so you first add those up to get 17 afterwards you multiply by your height, 13, once you get the answer of 221 you then divide by 2 to get the answer 110.5
Hope this helps