Exterior Angles Theorem

Select Exterior Angle A, Angle B and Angle C. Add interior angles B and C. How does this compare to exterior angle A?

Select Exterior Angle B, Angle A and Angle C. Add interior angles A and C. How does this compare to exterior angle B?

If interior angle A = 60 degrees and interior angle B = 70 degrees, what is the measure of exterior angle C?

Select all exterior angles. Add these exterior angles. What is the sum of the exterior angles?

Which of the following can be concluded about the exterior angles of triangles. Select all that apply.