Example:
The length of the parallel sides of a trapezoid are 10 cm and 7 cm. The distance between this is 4 cm. Find its area.

Solution:
Given that,
a = 10 cm, b = 7 cm and h = 5 cm. The equation for the area of trapezoid is (A) = 1/2 * (a+b)*h.
= 1/2 * (10+7)*4
= 1/2 * 17 * 4
= 17 * 2
= 34 sq cm.

Directions: Read the above example carefully and answer the following questions.

Draw 10 trapezoid with different lengths and label its sides. Also measure the distance between the parallel sides.