Worksheet: Exterior Angles of a Polygon

In this worksheet, we will practice identifying exterior angles of polygons, finding their sum, and using them to solve problems.


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


Olivia 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 𝑧 fit in the space to complete the circle?

  • ANo
  • BYes


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


In the figure 𝑚𝐷𝑀𝐴=28. What are 𝑚𝐸𝐷𝑀 and 𝑚𝐸𝑀𝐷?

  • A 2 8 , 6 8
  • B 5 6 , 5 6
  • C 5 6 , 6 8
  • D 5 6 , 6 2


What is the sum of the exterior angles of a triangle?


In the figure, use the information given to determine 𝑚𝐴𝐶𝐷.


Determine 𝑚𝐵𝐸𝐶.

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