Angle
formed by 2 rays with the same endpoint
Right Angle
90°
Congruent Angles
Angles with the same measure
Complementary Angles
two angles which add to 90°
Acute Angles
0
Supplementary Angles
two angles which add to 180°
Obtuse Angle
90°
Vertical Angles
two angles whose sides are opposite rays
StraightAdnf
x=180°
Adjacent
two coplanar angles with a common side a common vertex and no common interior points