Triangle on a line with missing angles measures
Interior and exterior angle measures of a triangle.
Practice finding the missing angle measures;
exterior angle of a triangle theorem
1. Can you determine the relationship between the measure of angle ACE, an exterior angle, and the measures of the two remote angles, angle CED & angle CDE? Explain the relationship.
Thm: Ext. angle of a ∆ & its two remote (int.) angles
2. The exterior angle of a ∆ is 68˚ & one of its remote angles is 47˚, what is the measure of its other remote angle?
3. Name another exterior angle (not the one mentioned in #1) and name its two remote interior angles.