Complementary and Supplementary Angles

This video tutorial covers the concepts of complementary and supplementary angles. It explains how complementary angles add up to 90 degrees and supplementary angles add up to 180 degrees. The tutorial includes examples and exercises on calculating missing angles and solving equations involving these angles. Students are encouraged to practice solving problems and reach out for help if needed.

What is the sum of two complementary angles?

• 180 degrees

• 90 degrees

• 45 degrees

• 360 degrees

Which symbol is often used to indicate complementary angles?

• Circle

• Straight line

• Triangle

• Right angle

If one angle is 60 degrees, what is its complementary angle?

• 120 degrees

• 90 degrees

• 60 degrees

• 30 degrees

What is the complementary angle to 23 degrees?

• 67 degrees

• 77 degrees

• 87 degrees

• 97 degrees

How do you solve for x in an equation involving complementary angles?

• Set the sum to 45

• Set the sum to 360

• Set the sum to 90

• Set the sum to 180

In the equation 2x + 28 = 90, what is the value of x?

• 31

• 32

• 33

• 34

What is the sum of two supplementary angles?

• 180 degrees

• 360 degrees

• 90 degrees

• 45 degrees

If one angle is 135 degrees, what is its supplementary angle?

• 75 degrees

• 45 degrees

• 55 degrees

• 65 degrees

What is the supplementary angle to 67 degrees?

• 143 degrees

• 113 degrees

• 123 degrees

• 133 degrees

In the equation 10x + 80 = 180, what is the value of x?

• 40

• 30

• 20

• 10