The area of a trapezoid is the average of the two unequal bases times the height:
So if you know the values for A, b1 and h, you can solve for b2.
I have a trapezoid with a top base (b1) of 10 and a height of 5.
Considering the area, find b2
Do I need to find the area first? If so, can someone explain how I go about that. You don't need to give me the answer, but I'm not sure where to start.