Angle Relationships Miller

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

Find the missing angle if one angle is 100°.

Back

80°

Front

What is the definition of complementary angles?

Back

Two angles that add up to 90°.

Front

What is the definition of supplementary angles?

Back

Two angles that add up to 180°.

Front

Identify the pairs of vertical angles: ∠COB and ∠COA, ∠AOD and ∠AOC, ∠COB and ∠AOD, ∠BOD and ∠AOD.

Back

∠COB and ∠AOD.

Front

If ∠A + ∠B = 90°, what type of angles are they?

Back

Complementary angles.

Front

If ∠C + ∠D = 180°, what type of angles are they?

Back

Supplementary angles.

Front

Find the value of x if 2x + 10 = 50.

Back

20.

Front

What is the sum of angles in a triangle?

Back

180°.

Front

What do you call angles that are adjacent to each other?

Back

Adjacent angles.