Angle Relationships Equations

Vertical angles are always

• acute

• total 180 degrees

• congruent (equal measures)

• adjacent angles

What is the vertical angle to angle 4?

• Angle 2

• Angle 6

• Angle 8

• Angle 7

Supplementary angles always add up to

Given the following two parallel lines cut by a transversal. Which pair of angles represents corresponding angles?

What is the Geometry Set up and the Equation for this problem?

• (x+8)

• (9x-18)

What is the Geometry Set up and the Equation for this problem?

• (x+8)

• (9x-18)

Find the value of a.

Answer explanation

Set up an equation.

67 - 13a = 51 - 5a

Add 13a on both sides

Subtract 51 on both sides

67-51 = -5a + 13a

Combine like terms and then solve for a.

What is the value of <DBC?

• 17

• 70

• 79

• 83

Give the Geometry Set Up and the Equation

e

f

a

b

• (15x-5)
• 35
• 90
• 180