Exploring Complementary and Supplementary Angles

Miss Sprunger reviews complementary and supplementary angles, concepts introduced in eighth-grade algebra. Complementary angles add up to 90 degrees, often visualized as corners of a house. Supplementary angles add up to 180 degrees, forming straight lines. The video includes examples and calculations to find missing angle values, emphasizing the importance of understanding these fundamental concepts.

What is the sum of complementary angles?

• 45 degrees

• 360 degrees

• 90 degrees

• 180 degrees

How do you find the value of an unknown angle if it is complementary to a 28-degree angle?

• Multiply 28 by 2

• Subtract 28 from 180

• Subtract 28 from 90

• Add 28 to 90

What property do complementary angles have in a right-angled box?

• They sum up to 90 degrees

• They are opposite to each other

• They sum up to 180 degrees

• They form a straight line

What is the sum of supplementary angles?

• 180 degrees

• 90 degrees

• 360 degrees

• 45 degrees

How do you solve for an unknown in a supplementary angle equation?

• Subtract from 180

• Add to 180

• Divide by 2

• Subtract from 90

If two angles are supplementary and one angle measures 132 degrees, what is the measure of the other angle?

• 48 degrees

• 52 degrees

• 38 degrees

• 42 degrees

In the context of supplementary angles, what does a straight line indicate?

• 90-degree angle

• 180-degree sum

• A perpendicular intersection

• A right angle

How can you determine the value of 'x' in a supplementary angle equation involving algebra?

• By dividing the angles by 2

• By adding the angles and equating to 90

• By subtracting the angles from 180

• By adding the angles and equating to 180

What is the value of 'x' if two supplementary angles are represented by 3x - 7 and 2x + 2?

• 45

• 40

• 37

• 35

If one angle is 9x - 8 and the other is 6x - 20, and they are supplementary, what is the value of 'x'?

• 18

• 15

• 16

• 17