Exploring Angle Relationships: Supplementary, Complementary, and Vertical

What do complementary angles add up to?

• 45 degrees

• 180 degrees

• 90 degrees

• 360 degrees

What is the value of x if 59 + 2x + 9 = 90?

• 15

• 11

• 31

• 22

How do you solve for x when given an equation with x on one side?

• Divide both sides by the coefficient of x

• Add x to both sides

• Subtract x from both sides

• Multiply both sides by x

Why don't we need to worry about parentheses when adding angles?

• Because angles can't be added

• Because parentheses change the value

• Because it's like having a positive one outside the parentheses

• Because it makes the equation harder

What are vertical angles?

• Angles that add up to 90 degrees

• Angles that are opposite each other when two lines intersect

• Angles that are adjacent to each other

• Angles that add up to 180 degrees

If two angles are vertical angles and one is 38 degrees, what is the other?

• 90 degrees

• 142 degrees

• 52 degrees

• 38 degrees

What do supplementary angles add up to?

• 45 degrees

• 360 degrees

• 180 degrees

• 90 degrees

If one angle is 93 degrees in a supplementary relationship, what is the other angle?

• 97 degrees

• 180 degrees

• 93 degrees

• 87 degrees

How do you solve for x in the equation 18 + 3x = 69?

• Divide 69 by 18 and subtract 3

• Add 18 to 69 and divide by 3

• Subtract 18 from 69 and divide by 3

• Multiply 18 by 3 and subtract from 69

What is the correct step to solve for x when you have an equation like 93 + 18 + 3x = 180?

• Add 93 and 18, then subtract from 180 and divide by 3

• Divide 180 by 93, then subtract 18 and multiply by 3

• Subtract 93 from 180, then subtract 18 and divide by 3

• Multiply 93 by 18, add to 180 and divide by 3