Relier Pairs Geometry vocabVersion en ligne 3rd grade geometry vocab par Lori Darden 1 Intersecting lines 2 Parallel lines 3 right angle 4 angle 5 line segment 6 vertex 7 line 8 ray they do not cross the endpoint shared by 2 rays. formed when 2 rays share the same endpoint. forms a square corner It has 1 endpoint and goes on without end in 1 direction. straight path that goes on without end in 2 directions they cross is part of a line. It has 2 end points.