Opposite Rays
Opposite raysare rays that share an endpoint and infinitely extend in
opposite directions. Opposite rays form straight angles.
Angles
Anglesare made up of two rays that share an endpoint but infinitely extend
in different directions.
Figure Symbol
(the vertex is always
the center letter when
naming an angle
with three letters)
M
L
N
Angle M, or LMN,
or NML, or 1
∠M
∠LMN
∠NML
∠ 1
1
Figure Symbol
(the endpoint
is always the
first letter when
naming a ray)
IKJ
JK
Opposite Rays JK
and JI
JI
501 Geometry Questions