Perimeter
Definition 1 of 2
Pro Tip 1/3
Geometry Context
Perimeter is a basic term in geometry often used in mathematics education. Find the perimeter of this triangle.
Pro Tip 2/3
Linear Measure
Perimeter refers to a one-dimensional measure, even if the shape is two-dimensional. The perimeter of our garden is longer than yours.
Pro Tip 3/3
Addition of Sides
It's the sum of all side lengths of a polygon, not just a measure of one side. To get the perimeter, add all the sides of the quadrilateral.