Understanding Angles: Supplementary and Complementary

The video tutorial covers the basics of angles, including acute, right, obtuse, and straight angles. It then delves into complementary angles, which add up to 90 degrees, and supplementary angles, which add up to 180 degrees. The tutorial provides examples and equations to help understand how to calculate missing angles in complementary and supplementary pairs.

What is the measure of a right angle?

• 180 degrees

• 360 degrees

• 45 degrees

• 90 degrees

Which type of angle is greater than 90 degrees but less than 180 degrees?

• Straight angle

• Obtuse angle

• Right angle

• Acute angle

What is the sum of two complementary angles?

• 360 degrees

• 180 degrees

• 90 degrees

• 45 degrees

If one angle is 30 degrees, what is the measure of its complementary angle?

• 90 degrees

• 60 degrees

• 30 degrees

• 150 degrees

Two angles are complementary. If one angle is 47 degrees, what is the other angle?

• 73 degrees

• 43 degrees

• 53 degrees

• 63 degrees

What is the sum of two supplementary angles?

• 180 degrees

• 45 degrees

• 360 degrees

• 90 degrees

If one angle is 110 degrees, what is the measure of its supplementary angle?

• 100 degrees

• 90 degrees

• 80 degrees

• 70 degrees

Two angles are supplementary. If one angle is 75 degrees, what is the other angle?

• 105 degrees

• 125 degrees

• 95 degrees

• 115 degrees

Which of the following is a characteristic of a straight angle?

• Exactly 180 degrees

• Less than 90 degrees

• Exactly 90 degrees

• Greater than 90 degrees

What mnemonic can help you remember the sum of complementary angles?

• C for 180 degrees

• S for 90 degrees

• S for 180 degrees

• C for 90 degrees