Geometry and measuresKey Stage 3

Area of a trapezium

Use the two parallel sides and the perpendicular height.

  • Use .
  • and are the parallel side lengths.
  • The height is the perpendicular distance between them.

Example 1

Find the area of the trapezium.

Add the parallel sides, halve the sum, then multiply by the perpendicular height.

Example 2

Find the area of the trapezium.

Add the parallel sides, halve the sum, then multiply by the perpendicular height.

Your turn

Question 1

Find the area of the trapezium.

Check answer
Add the parallel sides, halve the sum, then multiply by the perpendicular height.
Question 2

Find the area of the trapezium.

Check answer
Add the parallel sides, halve the sum, then multiply by the perpendicular height.
Question 3

Find the area of the trapezium.

Check answer
Add the parallel sides, halve the sum, then multiply by the perpendicular height.
Question 4

Find the area of the trapezium.

Check answer
Add the parallel sides, halve the sum, then multiply by the perpendicular height.
Question 5

Find the area of the trapezium.

Check answer
Add the parallel sides, halve the sum, then multiply by the perpendicular height.
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