Has no dimension. Location in space.
Extends in two dimensions infinitely.
Extends in one dimension infinitely.
Two or more points on the same line.
Tow or more objects on the same plane.
Part of a line that consists of 2 endpoints and all points between.
Part of a line that consists of initial starting point and all points to one side.
Two collinear rays that share the same initial point but no other points.
When two or more objects cross or meet.
Two rays that have the same initial starting point.
Objects having the same shape, and measurement.
Two angles who share the same vertex and side but no common interior points.
A point that divides a segment into two congruent parts.
Cuts something into two congruent parts.
Adjacent angles whose non-common side is a straight angle.
Any two angles whose sum is 90.
Any two angles whose sum is 180.