In any trapezoid, the area is given by
where B and b are the two bases, and h is the height. You're given all these elements already, so you only need to plug the values in:
Answer:
Step-by-step explanation:
∠E = ∠B
6x - 39 = 3x
6x - 3x = 39
3x = 39
x = 39/3
x = 13
The answer is B, I just took the test.