Angle Relationships (MOD)

Front

What is the complement angle to 12°?

Back

78°

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

Which are pairs of vertical angles?

Back

∠COB & ∠AOD

Front

These are Complementary angles. Find x if one angle is 75°.

Back

15°

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

If one angle is 30°, what is its complement?

Back

60°

Front

What is the relationship between adjacent angles?

Back

Adjacent angles share a common side and vertex.

Front

If two angles are vertical, what can we say about their measures?

Back

They are equal.

Front

What is the sum of angles in a straight line?

Back

180°.