Understanding Angles: Complementary, Supplementary, and Vertically Opposite

The video tutorial explains different types of angle pairs, focusing on complementary, supplementary, and vertically opposite angles. Complementary angles sum up to 90 degrees, while supplementary angles sum up to 180 degrees. Vertically opposite angles are formed when two lines intersect and are always equal. The tutorial provides examples and figures to illustrate these concepts, helping students understand the properties and relationships between these angles.

What is the sum of the measures of two complementary angles?

• 360 degrees

• 45 degrees

• 90 degrees

• 180 degrees

If angle ABC is a right angle, which of the following pairs of angles are complementary?

• Angle DBC and Angle ABC

• Angle ABD and Angle DBC

• Angle ABC and Angle DBC

• Angle ABD and Angle ABC

What is the sum of the measures of two supplementary angles?

• 45 degrees

• 360 degrees

• 90 degrees

• 180 degrees

Which of the following pairs of angles are supplementary?

• Angle 30 and Angle 60

• Angle 120 and Angle 60

• Angle 45 and Angle 45

• Angle 90 and Angle 90

What is a linear pair of angles?

• Two angles that add up to 90 degrees

• Two angles that add up to 180 degrees

• Two angles that are equal

• Two adjacent angles that form a straight line

What is the relationship between vertically opposite angles?

• They are always equal

• They are always complementary

• They are always supplementary

• They are always adjacent

When two lines intersect, which angles are formed?

• Vertically opposite angles

• Linear pairs

• Supplementary angles

• Complementary angles

If angle 1 is 70 degrees, what is the measure of its vertically opposite angle?

• 180 degrees

• 90 degrees

• 110 degrees

• 70 degrees

Which of the following is true about vertically opposite angles?

• They are always 90 degrees

• They are always adjacent

• They share the same vertex

• They form a linear pair

If angle 2 is 50 degrees, what is the measure of angle 4, its vertically opposite angle?

• 50 degrees

• 180 degrees

• 130 degrees

• 90 degrees