Exploring Angle Relationships

What is the definition of adjacent angles?

• Two angles that share a common side and vertex

• Two angles that are opposite each other

• Two angles that add up to 180 degrees

• Two angles that add up to 90 degrees

Which of the following pairs of angles are adjacent?

• Angles that add up to 180 degrees

• Angles that add up to 90 degrees

• Angles that are across from each other

• Angles that share a common side and vertex

What are vertical angles?

• Angles that add up to 180 degrees

• Angles that share a common side and vertex

• Angles that add up to 90 degrees

• Angles that are opposite each other and congruent

Which of the following is true about vertical angles?

• They add up to 180 degrees

• They are always congruent

• They share a common side and vertex

• They add up to 90 degrees

In parallel lines cut by a transversal, which angles are vertical angles?

• Angles that share a common side and vertex

• Angles that are opposite each other and congruent

• Angles that add up to 90 degrees

• Angles that add up to 180 degrees