Key learning points

1. The formula can be used to find the area of a triangle.
2. There can be more than one way to find the area of a trapezium.
3. The area of composite shapes can be found by splitting into shapes whose area can be found.

Keywords

• Area - The area is the size of the surface and states the number of unit squares needed to completely cover that surface.

• Trapezium - A trapezium is a quadrilateral with exactly one pair of parallel opposite sides.

• Trapeziums/trapezia - The plural of trapezium can be referred to as trapezia or trapeziums.

• Composite rectilinear shape - A composite rectilinear shape is a composite shape made from rectangles.

Common misconception