Exploring Vertical, Supplementary, and Complementary Angles

Which type of angle is exactly 90 degrees?

• Acute angle

• Obtuse angle

• Right angle

• Straight angle

What is the range of an obtuse angle?

• Exactly 90 degrees

• Less than 90 degrees

• Greater than 90 but less than 180 degrees

• Exactly 180 degrees

When naming an angle using three letters, where should the vertex be placed?

• At the beginning

• It doesn't matter

• In the middle

• At the end

Which of the following is NOT a correct way to name an angle with vertex B?

• Angle CAB

• Angle B

• Angle ABC

• Angle CBA

What is true about vertical angles?

• They are adjacent to each other

• They are equal to each other

• They add up to 180 degrees

• They add up to 90 degrees

What is the sum of supplementary angles?

• 45 degrees

• 90 degrees

• 180 degrees

• 360 degrees

If angle 1 is 50 degrees, what is the measure of its complementary angle?

• 90 degrees

• 50 degrees

• 40 degrees

• 130 degrees

Which angles share a common side?

• Adjacent angles

• Supplementary angles

• Complementary angles

• Vertical angles

What is the measure of angle DEA if it is labeled as angle 4?

• Angle 1

• Angle 8

• Angle 4

• Angle 6

If angle BCA is 75 degrees, what is the measure of its supplementary angle?

• 180 degrees

• 105 degrees

• 90 degrees

• 75 degrees