Exterior Angles Theorem

Author:
kathleenh
Topic:
Angles

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?

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

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

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