501 Geometry Questions

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