ABCD is a trapezoid. = 2.5 cm, and = 4 cm, and the area = 6.5 cm2. What is the altitude of the trapezoid?

6.5 = 1/2(2.5 + 4) h
6.5 = 1/2(6.5)h
6.5 = 3.25 h
h = 6.5 / 3.25
h = 2

answer
the altitude of the trapezoid is 2 cm