Exploring Angle Pairs and Addition

What is the defining characteristic of adjacent angles?

• They are always equal in measure.

• They are always complementary.

• They share a common vertex and a common side.

• They are always supplementary.

Which of the following statements is true about vertical angles?

• They are always adjacent.

• They are always complementary.

• They always form a straight line.

• They are always congruent.

What is a linear pair of angles?

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

• Two angles that add up to 90 degrees.

• Two adjacent angles that form a straight line.

• Two angles that are congruent.

Complementary angles add up to:

• 180 degrees

• 90 degrees

• 360 degrees

• 45 degrees

What is the measure of two supplementary angles if one angle is 130 degrees?

• 130 degrees

• 90 degrees

• 60 degrees

• 50 degrees

Which symbol indicates perpendicular lines?

• ∠

• ≅

• ⊥

• ∥

Name two adjacent angles whose sum is less than 90 degrees.

• 30 degrees and 60 degrees

• 50 degrees and 50 degrees

• 30 degrees and 55 degrees

• 45 degrees and 45 degrees

Find the measures of two supplementary angles if one angle is six less than five times the measure of the other angle.

• 31 degrees and 149 degrees

• 30 degrees and 150 degrees

• 60 degrees and 120 degrees

• 45 degrees and 135 degrees

What is the measure of the complement to an angle measuring 40 degrees?

• 50 degrees

• 60 degrees

• 70 degrees

• 80 degrees

If angle 1 and angle 2 are vertical angles and the measure of angle 1 is D - 32, what is the measure of angle 2 if D is 69?

• 32 degrees

• 37 degrees

• 69 degrees

• 101 degrees