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