This Exterior Angles Theorems: Lesson video also includes:
Use the inside to find the outside. The resource presents two theorems dealing with exterior angles of a triangle. Using the two theorems, the segment from a larger geometry playlist works problems to solve for angle measures.
9 Views 4 Downloads CCSS: Adaptable
- Have individuals describe an informal proof of the two exterior angle theorems
- Individuals should know the Triangle Angle Sum Theorem
- The class should know how to solve linear equations
- Uses colors to highlight different sets of angles
- Links to other CK-12 resource on exterior angles