What is an exterior angle of a triangle?
Understand the Problem
The question is asking for the definition or explanation of an exterior angle in the context of a triangle. This involves understanding the geometric principles surrounding triangles and their angles.
Answer
An exterior angle of a triangle is formed by extending one side of the triangle.
The exterior angle of a triangle is the angle formed by one side of the triangle and the extension of its adjacent side.
Answer for screen readers
The exterior angle of a triangle is the angle formed by one side of the triangle and the extension of its adjacent side.
More Information
The exterior angle theorem states that the measure of an exterior angle is equal to the sum of the two non-adjacent interior angles of the triangle.