Justification & Two Column Proofs

What is the justification?

• Symmetric Prop.
• Angle addition postulate
• Reflexive Prop
• Transitive Prop.

Tags

CCSS.8.G.A.2

AB = AB

• Reflexive Property Of Equality

• Transitive Property Of Equality

• Symmetric Property Of Equality

• Distributive Property Of Equality

• Addition Property Of Equality

• Angle Addition Postulate

• Subtraction Property Of Equality

• Substitution Property Of Equality

Tags

CCSS.8.G.A.5

What is the missing statement in the proof?

• Subtraction Property Of Equality

• Substitution Property Of Equality

• Transitive Property Of Equality

• Symmetric Property Of Equality

Tags

CCSS.HSG.SRT.B.5

If M is the midpoint of AB, then AM = MB

• Addition Property Of Equality

• Def. of Midpoint

• Reflexive Property Of Equality

• Symmetric Property Of Equality

Tags

CCSS.HSG.CO.C.10

When starting a proof you always start with:

• Given information
• What it wants you to prove
• Equal Angles
• Linear Angles

Tags

CCSS.8.G.A.5

What is the missing statement in the proof?

• Addition Property Of Equality

• Segment Addition Postulate

• Substitution Property Of Equality

• Transitive Property Of Equality

What is the REASON for Statement #6?

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Division Property of Equality

Tags

CCSS.7.G.B.5

Fill in the reason for number 5.

• Definition of congruent angles

• Angle Addition Postulate

• Substitution Property

• Transitive Property

Tags

CCSS.7.G.B.5

Which property justifies the next step?

• Definition of linear pair
• Definition of supplementary angles
• Congruent supplements thm
• Linear pair postulate

Tags

CCSS.7.G.B.5