Reasoning and Proof
Adjacent Angles
Two coplanar angles
that have a common
vertex and side
Complimentary Angles
Two angles that have
a sum of 90 degrees
Supplementary Angles
Two angles that have
a sum of 180 degrees
Vertical Angles
Two angles whose sides
form two pairs of
opposite rays
Symmetric
A figure that has isometry
that maps the figure
onto itself
Theorem
A statement that
you prove true
