Classify by Angles Congruence

Vertical angles are always

• acute

• total 180 degrees

• congruent (equal measures)

• adjacent angles

• Alternate Interior Angles

• Alternate Exterior Angles

• Same-side Interior Angles

• Corresponding Angles

• None of these

• True

• False

What is the vertical angle to angle 4?

• Angle 2

• Angle 6

• Angle 8

• Angle 7

Angle 1 = 27^o
Find the measure of angle 4

• 27^o

• 153^o

• 63^o

• 90^o

Find the m∠1

• 67

• 113

• 180

• 23

Find the value of x.

• x = 10

• x = 20

• x = 720

• x = 5

Find D

• ∠D=116°

• ∠D=64°

• ∠D=180°

• ∠D=26°