GCSE OCR 2-dimensional shapes - OCR Area of parallelograms 2-dimensional shapes are flat. The perimeter of a 2D shape is the total distance around the outside of the shape.

Perimeter, Area, Volume Perimeter Learn about perimeters and how to calculate the perimeter of a simple shape with this BBC Bitesize Maths article. For students between the ages of 11 and 14.