What is the perimeter?
Calculating perimeter
The perimeter is the distance all the way around the outside of a 2D shape.**
To work out the perimeter, add up the lengths of all the sides.
2D shapes, there's more to learn...
This guide
The perimeter is the distance all the way around the outside of a 2D shape.**
To work out the perimeter, add up the lengths of all the sides.