Question

The parallel sides of a trapezium are 12 cm and 20 cm, and the distance between them is 9 cm. Find its area.

Solution

1. Area = 1/2 x (sum of parallel sides) x height.
2. = 1/2 x (12 + 20) x 9 = 1/2 x 32 x 9.
3. = 16 x 9 = 144.
4. The area is 144 cm^2.