SOLUTION: Please help. The area of a trapezoid is given by A=1/2h (a+b), where h is the height of the trapezoid and a and b are the lengths of the upper and the lower base, respectively.

Question 192231: Please help.
The area of a trapezoid is given by
A=1/2h (a+b),
where h is the height of the trapezoid and a and b are the lengths of the upper and the lower base, respectively.
solve for a
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!