Angle Pairs

Which of the following is a linear pair?

• Two angles that add up to 90 degrees

• Two angles that add up to 180 degrees

• Two angles that share a common vertex but not a common side

• Two angles that are equal in measure

What is the measure of a straight angle?

• 90 degrees

• 360 degrees

• 180 degrees

• 45 degrees

Which angle pair is complementary?

• 60 degrees and 120 degrees

• 45 degrees and 45 degrees

• 90 degrees and 90 degrees

• 30 degrees and 75 degrees

Vertical angles are always…

• Right angles

• Equal in measure

• Acute angles

• Different in measure

If two angles are adjacent, they…

• Are on opposite sides of a transversal

• Share a common side and vertex

• Are equal in measure

• Add up to 180 degrees

What is the supplement of 110 degrees?

Answer explanation

70 degrees

What is the complement of 60 degrees?

Answer explanation

30 degrees

Complementary angles are two angles whose sum is 90 degrees.

• True

• False

Supplementary angles are always adjacent.

• True

• False

Vertical angles are always congruent.

• True

• False