4.1 Triangles & Angles August 15, 2013. 4.1 Classifying Triangles Triangle – A figure formed when three noncollinear points are connected by segments.
Geometry Agenda
4-1 Triangles and Angles. Theorem 4.1: Triangle Sum The sum of the measures of the interior angles of a triangle is 180 . xx yy zz x +
Angle Theorems & Definitions (Review). Supplementary = 180 ° Complementary = 90°
