🌐 bbc.co.uk
What is the perimeter of a 2D shape? - BBC Bitesize
The outside edge of a shape is known as the perimeter. Learn how to work out the perimeter of a 2D shape with this Year 4 article from BBC Bitesize.
↗ https://www.bbc.co.uk/bitesize/topics/z3mws82/articles/zsr4k7h