Angle Relationships Vocab

Front

Type of angle shown?

Back

obtuse

Front

Type of angle shown?

Back

right

Front

Type of angle shown?

Back

straight

Front

Type of angle shown?

Back

acute

Front

Angle relationship:

Back

Complementary angles

Front

∠1 and ∠3 can best be described as -

Back

vertical angles

Front

∠AOB and ∠COB are best described as -

Back

adjacent angles

Front

Angle relationship:

Back

supplementary angles

Front

Vertical angles are:

Back

Opposite angles when lines intersect.

Front

Complementary angles

Back

Add up to 90°