Year 9 Interactive Maths - Second Edition

Area of a Trapezium

Recall that:

The area of a trapezium, A, is given by:

Example 13

Find the area of the following trapezium.

Solution:

So, the area of the trapezium is 368 cm².

Example 14

Find the area of the following trapezium.

Solution:

So, the area of the trapezium is 60 cm².

Remember:

• A trapezium is a quadrilateral that has only one pair of parallel sides.
• The area of the trapezium is given by the following formula where a and b are the lengths of the parallel sides and h is the perpendicular distance between the parallel sides.