Intro to Basic Geometry Terms

Two angles that share a common vertex and side, but have no common interior points

• Supplementary angles

• Complementary angles

• Adjacent angles

• Vertical angles

A ray or segment that divides something into two parts that are congruent

• Bisector

• Vertex

• Midpoint

• Intersection

Points that lie on the same line

• Coplanar points

• Noncollinear points

• Collinear points

• Noncoplanar points

Two angles whose measures have the sum 90°

• Complementary angles

• Right angle

• Supplementary angles

• Adjacent angles

Angles that have the same measure

• Complementary angles

• Supplementary angles

• Adjacent angles

• Congruent angles

Points that lie in the same plane

• Coplanar points

• Collinear points

• Noncollinear points

• Noncoplana points

The set of points that two or more geometric figures have in common

• Midpoint

• Intersection

• Vertex

• Bisector

one dimensional and extends without end in two directions

• Plane

• Line

• Line segment

• Ray

Two adjacent angles whose noncommon sides are opposite rays

• Linear pair

• Adjacent angles

• Supplementary angles 

• Vertical angles

Part of a line. Has two endpoints and includes all of the points in between.

• Point

• Angle

• Line

• Line Segment