Line Segment Angle Addition

Find the value of ∠A.

• 25°

• 30°

• 35°

• 90°

Find x

Solve

• 50°

• 58°

• 115°

• 226°

Solve for x

• x = 77

• x = 7.5

• x = 8

• x = 18

What is m∠ABD

• 80

• 120

• 20

• 100

What is the measure of angle 1?

• 78

• 48

• 30

• 126

Angle JHG measures 161.

• m∠GHK=80.5, 
  m∠KHJ=161

• m∠GHK=161, 
  m∠KHJ=80.5

• m∠GHK=80.5, 
  m∠KHJ=80.5

• m∠GHK=161, 
  m∠KHJ=161

Which postulate or definition states that
m∠ADB + m∠BDC = m∠ADC?

• Segment Addition Postulate

• Angle Addition Postulate

• Definition of Angle Bisector

• Definition of Congruent Angles