GEOMETRY BASICS
Undefined terms:
point location, dot
(
tine: infinite points in a straight path T
T
plane: Flat surface (no thiekness)
Defined terms:
(< ) angle: a rays connected by an endpoint
the
a that at a
Collinear: a or more points on a same line
coptanar: a or more points on a same plane
( or same = shape)
18
adjacent share a line or point
=
addition postulate! part + part = WHOLE
45
bisector : splits into a congruent parts
45
K
a=b
C=d
Vertical Es: a angles opposite are congruent
a
Complementary
is
:
a
angles
=
90°
b
supprementary to : . a angles = 180° a b
tinear pair pootulate: adjacent < = 180°
9/6
midpoint: clivides a segment in a= parts
