Exploring Angle Relationships: Complementary and Supplementary Angles

What is the sum of supplementary angles?

• 90 degrees

• 180 degrees

• 45 degrees

• 360 degrees

Tags

CCSS.7.G.B.5

Which mnemonic helps remember that complementary angles sum to 90 degrees?

• Corner starts with C

• Straight line starts with S

• Circle starts with C

• Square starts with S

Tags

CCSS.7.G.B.5

If two angles are on a straight line and sum to 180 degrees, they are:

• Adjacent

• Vertical

• Supplementary

• Complementary

Tags

CCSS.7.G.B.5

In the diagram, which angles are complementary and include a right angle?

• Angles 1 and 6

• Angles 2 and 7

• Angles 3 and 4

• Angles 5 and 6

Tags

CCSS.7.G.B.5

Which pair of angles forms a straight line and is supplementary?

• Angles 3 and 4

• Angles 1 and 6

• Angles 2 and 5

• Angles 7 and 8

Tags

CCSS.7.G.B.5

What is the value of angle c if it is supplementary to angle b which is 42 degrees?

• 142 degrees

• 138 degrees

• 48 degrees

• 90 degrees

Tags

CCSS.7.G.B.5

If x in the equation x + 3x + 10 = 90 represents an angle, what is the value of x?

• 20 degrees

• 15 degrees

• 30 degrees

• 25 degrees

Tags

CCSS.7.G.B.5

What is the measure of angle ABD if it is represented as 2x and x = 18?

• 90 degrees

• 72 degrees

• 54 degrees

• 36 degrees

Tags

CCSS.7.G.B.5

What is the measure of angle DBC if it is represented as 8x and x = 18?

• 152 degrees

• 172 degrees

• 144 degrees

• 160 degrees

Tags

CCSS.7.G.B.5

What is the sum of the measures of angles ABD and DBC if ABD = 20 degrees and DBC = 70 degrees?

• 90 degrees

• 120 degrees

• 100 degrees

• 110 degrees

Tags

CCSS.4.MD.C.7