Base Angles In An Isosceles Triangle
Illustration showing that can be used to prove that the base angles of an isosceles triangle are equal.
Keywordsequal, triangles, Vertex, isosceles triangle, congruent angles, base angles, geometric proof
GalleriesGeometric Theorems and Proofs
C. A. Hart & Daniel D. Feldman Plane And Solid Geometry (New York: American Book Company, 1911) 31