Exploring Complimentary and Supplementary Angles

What is the sum of complementary angles?

• 360 degrees

• 45 degrees

• 90 degrees

• 180 degrees

What do supplementary angles form?

• A triangle

• A circle

• A straight line

• A right angle

How can you remember the difference between complementary and supplementary angles?

• Complementary angles are larger.

• Supplementary angles form a right angle.

• Complementary angles add up to 90 degrees.

• Supplementary angles are always acute.

If two angles form a straight line, they are:

• Supplementary

• Complementary

• Neither

• Both

Two angles add up to 90 degrees. They are:

• Complementary

• Supplementary

• Neither

• Both

If angle 1 and angle 2 add up to 180 degrees, they are:

• Both

• Neither

• Supplementary

• Complementary

What is the value of x if 28 + 2x = 90?

• 90

• 45

• 31

• 61

Find x when 123 + 3x = 180.

• 61

• 90

• 57

• 19

If x + x = 90, what is the value of x?

• 45

• 90

• 180

• 30

What is x when 80 + 10x = 180?

• 8

• 100

• 10

• 18