7th Grade Angle Relationships

Front

What type of angle is less than 90°?

Back

Acute angle

Front

What type of angle is exactly 90°?

Back

Right angle

Front

What type of angle is greater than 90° but less than 180°?

Back

Obtuse angle

Front

What type of angle is exactly 180°?

Back

Straight angle

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

What is the sum of complementary angles?

Back

90°

Front

What is the sum of supplementary angles?

Back

180°

Front

If ∠BPD and ∠DPC have a sum of 72°, what is ∠APC?

Back

108°

Front

What is the supplement angle to 42°?

Back

138°

Front

What are complementary angles?

Back

Two angles that add up to 90°.