Angle Relationships Review

Front

What type of angle is shown?

Back

Right angle (90°)

Front

Angles which add up to 180° are called _____

Back

Supplementary Angles

Front

What does the word bisect mean?

Back

To cut in half and make 2 equal pieces

Front

Name the vertical angle to ∠h.

Back

∠f

Front

Angles which add up to 90° are called _____

Back

Complementary Angles

Front

What is an acute angle?

Back

An angle less than 90°.

Front

What is an obtuse angle?

Back

An angle greater than 90° but less than 180°.

Front

What are vertical angles?

Back

Angles opposite each other when two lines intersect; they are equal.

Front

What are corresponding angles?

Back

Angles that are in the same position on different parallel lines cut by a transversal.

Front

What is a straight angle?

Back

An angle that measures exactly 180°.