Exterior Angle Inequality Proof Hyperbolic Geometry
- Author:
- Dr. Jack L. Jackson II
- Topic:
- Angles, Geometry, Triangles, Trigonometry
Exterior Angle Inequality
The Exterior Angle Inequality says that the measure of an exterior angle to a triangle is strictly greater than the measures of each of its remote interior angles. This theorem is valid in Euclidean and Hyperbolic Geometries. Here is a proof with an illustration from Hyperbolic Geometry.