Proving Geometric Relationships

What type of angle is shown?

• acute
• obtuse
• right
• straight

The angle relationship shown is - 

• complementary angles
• supplementary angles
• vertical angles
• adjacent angles

• 20°

• 30°

• 40°

• 60°

Which equation can be used to determine the value of x?

• 2x + 10 = 46

• 2x + 10 + 46 = 180

• 2x + 10 + 46 = 90

• not here

Which property justifies the next step?

• Symmetric Property

• Segment Addition Postulate

• Definition Midpoint

• Definition Congruence

What is the reason?

• Reflexive

• Symmetric

• Definition of congruence

• Definition of equal

Give the reason for statement #4

• Reflexive property

• Addition of equality

• Substitution

• Segment Addition Postulate

what is the 3rd reason?

• definition of congruence

• transitive property

• definition of midpoint

• given

Which property justifies the next step?

• Symmetric Property
• Transitive Property
• Segment Addition Property
• Reflexive Property