Finding Missing Angles: Complementary and Supplementary Concepts

This video tutorial covers the concepts of complementary and supplementary angles. Complementary angles are two angles that add up to 90 degrees, while supplementary angles add up to 180 degrees. The video explains how to remember these concepts and solve for missing angles using equations. It provides examples and encourages viewers to practice solving problems on their own. The tutorial also highlights different methods to find missing angles, such as using inverse operations and subtraction.

What is the sum of complementary angles?

• 360 degrees

• 45 degrees

• 90 degrees

• 180 degrees

How can we remember the sum of complementary angles?

• By remembering it's half of 180

• By finding an 'S' in the number 180

• By associating it with a straight line

• By making a 'C' in the number 9

Which of the following is a correct example of complementary angles?

• 45 degrees and 45 degrees

• 70 degrees and 20 degrees

• 60 degrees and 120 degrees

• 30 degrees and 150 degrees

If one angle is 40 degrees, what is the complementary angle?

• 90 degrees

• 45 degrees

• 140 degrees

• 50 degrees

What operation helps find a missing complementary angle?

• Division

• Addition

• Subtraction

• Multiplication

What is the sum of supplementary angles?

• 180 degrees

• 90 degrees

• 360 degrees

• 270 degrees

How can we remember the sum of supplementary angles?

• By finding an 'S' in the number 180

• By associating it with a circle

• By remembering it's double of 90

• By making a 'C' in the number 9

Which of the following is a correct example of supplementary angles?

• 90 degrees and 90 degrees

• 45 degrees and 135 degrees

• 100 degrees and 80 degrees

• 60 degrees and 30 degrees

If one angle is 45 degrees, what is the supplementary angle?

• 90 degrees

• 135 degrees

• 180 degrees

• 45 degrees

What operation helps find a missing supplementary angle?

• Division

• Subtraction

• Addition

• Multiplication