What does perimeter mean in geometry?

[david1]

I’m learning shapes and need to understand what perimeter is and how to calculate it.

 

[niyati]

In geometry, the perimeter refers to the total distance around the outside of a two-dimensional shape. It is found by adding the lengths of all the sides. For example, the perimeter of a rectangle is calculated as 2 × (length + width). It is usually measured in units like centimetres or meters.

 

[jarwish]

In geometry, the perimeter is the total distance around the outside of a shape. It is found by adding the lengths of all sides of a polygon. For example, the perimeter of a rectangle is calculated as 2 × (length + width).