Geometry Vocab

Front

Angles next to each other sharing a side:

Back

adjacent angles

Front

An angle measuring 180 degrees is a ____ angle.

Back

straight

Front

Angles formed by intersecting lines that create an X and are equal are called:

Back

vertical angles

Front

An angle measuring 90 degrees is a _____ angle.

Back

right

Front

Angles on the same line add to 180°:

Back

angles on a line

Front

An angle measuring < 90° is a(n) _____ angle.

Back

acute

Front

Angles sharing a common vertex that sum to 360° are:

Back

angles at a point

Front

Angle > 90° and < 180°

Back

obtuse

Front

Angles with equal measures are called:

Back

congruent angles

Front

Angles with a sum of 180° are _____ angles.

Back

supplementary