Complementary vs. Supplementary Angles Explained

Mr. D explains complementary and supplementary angles, providing definitions and examples. Complementary angles add up to 90 degrees, while supplementary angles add up to 180 degrees. A memory trick is shared to help remember these sums: draw a line on the 'C' for complementary to form a '9' for 90 degrees, and connect the endpoints on the 'S' for supplementary to form an '8' for 180 degrees. The video includes problem-solving examples for both types of angles.

What total do complementary angles sum up to?

• 180 degrees

• 90 degrees

• 360 degrees

• 45 degrees

Tags

CCSS.7.G.B.5

How can you remember the sum of complementary angles using the letter 'C'?

• Drawing a circle around it

• Drawing a line to form a '9'

• None of the above

• Associating it with the word 'circle'

Tags

CCSS.7.G.B.5

In the equation 40 + 50, what type of angles are being described?

• Complementary

• Acute

• Obtuse

• Supplementary

Tags

CCSS.7.G.B.5

If two angles are complementary and one angle is 62 degrees, what is the measure of the other angle?

• 148 degrees

• 28 degrees

• 32 degrees

• 118 degrees

Tags

CCSS.7.G.B.5

What is the sum of supplementary angles?

• 45 degrees

• 360 degrees

• 180 degrees

• 90 degrees

Tags

CCSS.7.G.B.5

What is the value of 'n' if 34 + 2n equals 90?

• 18

• 34

• 56

• 28

Tags

CCSS.3.MD.A.2

How can you remember the sum of supplementary angles using the letter 'S'?

• Drawing a line to form an '8'

• None of the above

• Associating it with the word 'straight'

• Drawing two parallel lines

Tags

CCSS.7.G.B.5

If 'n' equals 28 degrees in a complementary angle equation, what is the total sum of the angles?

• 180 degrees

• 90 degrees

• 56 degrees

• 28 degrees

Tags

CCSS.7.G.B.5

If two angles are supplementary and one angle is 107 degrees, what is the measure of the other angle?

• 273 degrees

• 73 degrees

• 107 degrees

• 180 degrees

Tags

CCSS.7.G.B.5

What is the value of 'y' if 3y + 60 equals 180?

• 40

• 60

• 120

• 180

Tags

CCSS.7.G.B.5