Relier Pairs Properties of TriangleVersion en ligne Types and formulas par Laudith Navarro 1 This si called the angeles sum property of a Triangle 2 Three sides, three angeles anda three vértices 3 AB=BC=AC 4 Triangles can be classified in two mejor ways A Triangle has: Equilateral Triangle They sum of allá internal angeles of a Triangle is always equal to 180° Classification according to internal angles ando classification according to the length of its sides