ABCD is a trapezoid. = 1 cm and = 5 cm, and the area = 7.5 cm2. What is the altitude of the trapezoid? 1.5 cm 2.5 cm 3 cm 2 cm

2.5 cm

Step-by-step explanation:

The area (A) of a trapezoid is calculated as

A = h(a + b)

where h is the altitude and a, b the parallel bases

Here a = 1, b = 5 and A = 7.5 , thus

h (1 + 5) = 7.5, that is

× 6h = 7.5

3h = 7.5 ( divide both sides by 3 )

h = 2.5 cm ← altitude