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