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19 Cards in this Set
 Front
 Back
Space

Space is the set of all points


collinear

a set of points are collinear iff they all lie on the same line


Coplanar

a set of points are coplanar iff they all lie on the same plane


Betweeness

P is between A and B (APB) iff the points are distinct, collinear and AP + PB = AB


Segment

Segment AC is a set of points containing A, C, and all points between A and C


Length of a segment*

The length of a segment is the distance between it's end points


Congruent

Two segments are congruent iff they have the same length.


Midpoint

M is the midpoint of segment AB iff AMB, and segment AM is congruent to segment MB


Ray

Ray AB is a set of points containing segment AB and all points R such that ABR


Opposite Rays

Ray SR and ray ST are opposite rays iff RST


Bisector of segment

The bisector of a segment is any line, point, plane, ray, or segment that intersects the segment at it's midpoint


Angle

An angle is the union of any two noncollinear rays with the same endpoint


Adjacent Angles

2 angles are adjacent iff they are coplanar, have a common vertex and common side, and no common interior points.


Angle Addition Postualte
Pt. 1 
If point W is in angle AOB then the measure of angle 2 + the measure of angle 1 = angle AOB


Angle Addition Postulate
Pt. 2 
If AOB and point X is not on segement AB then the measure of angle 3 + the measure of Angle 4 = 180


Acute

An acute angle has the measure of less than 90 degrees.


Right

A right angle has the measure of 90 degrees.


Obtuse

An obtuse angle has the measure of greater than 90 degrees.


Bisector of an angle

Ray BW is the bisector of angle ABC iff W is in the interior of angle ABC and angle ABW is congruent to angle WBC.
