Discover how to work out the area of a 2D shape, by adding the length of its sides together. Calculating the area compound shapes Find out how to use a formula to work out the area of a flat shape.

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.

We present a new formulation of a shape space containing all continuously defined 2D spline curves up to a similarity transform of a reference shape. We are able to measure a distance between an ...