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point
no dimensional spot in space

line
infinite amount of points extending without end in 1 direction

plane
infinte amout of points extanding 2 dimensions

collinear
points that lie on same line

non collinear points
points that do not lie on same line

coplaner points
points on same plane

sagment
consistes of 2 endpoints between them

ray
consist of a intitial point and extends 1 direction

intersection
set of points that two figs. have in common

distance.
absolute value of the diffrence between the 2 coordiants

midpoint
a point that divides a segment into two congruent segments


a point ray segment line or plane that intersects a segment at its mid point

angle
two rays that have same intial ptt.

vertex
point where the rays initial points meet

congruent angles
angles that have the same measure

adjacent angles
two angles share common vertex and side but no common intenor points

angle bisector
a ray that divides an angle in two congruent angles

vertical angles
angles have sides that form opp. rays

linear pair
2 angles non common sides form opp. rays also supplenmentry and must me ajacent

complementry angles
two angles whose sum is 90*

equilateral polygon
all sides congrent

equanguler
all angles congrent

regular
a polygon is regular if it is both equilateral and equiangler

