Pupil outcome: I can calculate the perimeter of compound shapes made from rectangles, triangles, parallelograms and trapeziums efficiently. Key learning points: - Before calculating perimeter, consider the shape and check you know the...

This video explains how to find the perimeter of 2D shapes such as squares, rectangles, triangles and composite shapes. A range of practice questions are at the end of the video.

This video explains how to use the find the areas of complicated shapes which we call compound or composite shapes. The idea here is to split them into multiple simple shapes like rectangles, parallelograms, triangles and...

Here, we have 3 farmers Bob, Jack and Jill. They need to fence their fields to stop their sheep from running away. However, they’re not too sure how much fencing to buy, especially since their fields have different shapes. In order to...