Lesson: Exterior Angles of a Polygon Mathematics • 8th Grade

In this lesson, we will learn how to identify exterior angles of polygons, find their sum, and use them to solve problems.

Lesson Video

Lesson Playlist

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Lesson Worksheet

Q1:

What is the sum of the measures of the exterior angles of a hexagon?

Q2:

Chloe is experimenting with the exterior angles of a triangle. She colors the angles, cuts them out, and sticks them together as seen in the figure. Will angle fit in the space to complete the circle?

Q3:

What is the measure of the exterior angle of an equilateral triangle?