Exterior Angle Theorem
Grade 8th Grade · Math · 45 min· Nc.8.g.5
What's Included
Learning Objective
I can apply the exterior angle theorem to solve problems involving missing angle measures in triangles.
Warm-Up Video
Miacademy & MiaPrep Learning Channel · 6:38
Exterior Angle Theorem - Triangle Angle Practice for High School
Guided Notes
3 key concepts
- 1
The exterior angle theorem states that the measure of an exterior angle of a triangle is equal to the sum of the two remote interior angles.
- 2
An exterior angle is formed by extending one side of a triangle.
- 3
A remote interior angle is an angle inside the triangle that is not adjacent to the exterior angle.
Practice Questions
9 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“In a triangle, the two remote interior angles measure 30° and 50°. Draw a picture of this and label each given angle as well as the exterior angle. What is the measure of the exterior angle?”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
