Angle Relationships

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

What is the measure of the missing angle if one angle is 108°?

Back

72 degrees.

Front

E is also known as the _________________?

Back

vertex.

Front

Which phrase is incorrect? Complementary angles have to be adjacent. Supplementary angles equal 180°. Complementary angles can make a right triangle. Complementary angles add up to be half of 180°.

Back

Complementary angles have to be adjacent.

Front

If ∠COB is 124°, what is ∠BOD? How are they related?

Back

56°, they are supplementary.

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 definition of adjacent angles?

Back

Angles that share a common side and vertex.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal.

Front

If two angles are complementary and one angle measures 30°, what is the measure of the other angle?

Back

60°.