Angle Pairs Review

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What is the value of x if two angles are complementary and one angle measures 25°?

Back

x = 65°.

Front

What is the value of x if two angles are supplementary and one angle measures 75°?

Back

x = 105°.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

What are adjacent angles?

Back

Angles that share a common side and a common vertex.

Front

If angle A measures 40°, what is the measure of its complementary angle?

Back

50°.

Front

If angle B measures 110°, what is the measure of its supplementary angle?

Back

70°.

Front

What is the relationship between complementary angles?

Back

They always add up to 90°.

Front

What is the relationship between supplementary angles?

Back

They always add up to 180°.