Google Classroom
GeoGebraGeoGebra Classroom

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 โˆ† & its two remote (int.) angles

2. The exterior angle of a โˆ† is 68หš & one of its remote angles is 47หš, 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.