GCSE CCEA Module 1 (M1) - Geometry & measures - Metric units Part of Maths M1: Geometry and measures Save to My BitesizeSave to My BitesizeSavingSavedRemovingRemove from My Bitesize ...
The perimeter is the total distance around the edge of a 2D shape. Since it is a length, the metric units for perimeter are millimetres (mm), centimetres (cm), metres (m) and kilometres (km).