Definition, Meaning & Synonyms

exterior-angle

Noun

/ɪkˈstɪr.i.ər ˈæŋɡ.əl/

Definition

An exterior angle is an angle formed by one side of a polygon and the extension of an adjacent side.

Examples

In a triangle, the exterior angle is equal to the sum of the two non-adjacent interior angles.
If you extend one side of a square, the angle formed outside is considered the exterior angle.
In a regular polygon, each exterior angle can be found by dividing 360 degrees by the number of sides.

Meaning

In geometry, an exterior angle refers to the angle formed outside a polygon when one side is extended. It is crucial in various geometric calculations and properties.