Key learning points

1. You can identify how to find the perimeter of compound shapes made of rectangles.
2. You can calculate the perimeter of compound shapes made from rectangles.
3. You can generalise the perimeter of compound shapes made of rectangles.
4. It is possible to find missing lengths in compound shapes made from rectangles.

Keywords

• Compound shape - A compound shape is a shape created using two or more basic shapes.

• Composite shape - A composite shape is an alternative term for a compound shape.

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

Common misconception