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16 Cards in this Set

  • Front
  • Back
Line
A series of points that extend in two directions without end
Line Segment
Part of a line bounded by two end points
Collinear
Points that lie on the same line
Plane
A flat surface that extends in all directions without end.
Coplanar
Points that lie in the same plane
Congruent
Congruent segments are segments that have the same measure
Midpoint
M is the midpoint of AB, if
AM = MB
Bisector
If CD intersects AB at the midpoint(M), then CD bisects AB
Ray
Part of a line consisting of only one endpoint. HAS A DIRECTION
Angle
Two rays with the same endpoint. The endpoint is called the vertex.
Right Angle
An angle with a measure of exactly 90 degrees
Straight Angle
An angle whose measure is 180 degrees
Obtuse Angle
An angle whose measure is more than 90 degrees
Vertical Angles
Angles formed by intersecting lines and lying on opposite sides of the vertex
Complimentary Angles
Two angles whose sum is 90 degrees
Supplementary Angles
Two angles whose sum is 180 degrees.