Two-Column Proof Practice 1

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 is the correct reason for statements 2 and 4 in the proof?

• Corresponding Angles
• Substitution
• Definition of Congruent Angles
• Vertical Angles are congruent.

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

What is the reason?

• Transitive 
• Substitution
• Middle Man
• Replacing 

Tags

CCSS.HSA.REI.C.5

What is the REASON for Statement #2?

• Given
• Definition of Complementary Angles
• Substitution Property
• Reflexive Property of Congruence

Tags

CCSS.7.G.B.5

4) What is the reason for Statement 3

• Corresponding Angles Postulate

• Angles that form a Linear Pair that sums 180°

• Same-side Interior Angles Theorem

• Vertical Angles Theorem

Tags

CCSS.8.G.A.5

What is always the 1st statement in reason column of a proof?

• Prove
• Given
• Reason
• Statement

What are the two columns labeled in a proof?

• Reasons / Proof

• Statements / Postulates

• Reasons / Given

• Statements / Reasons

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 p.o.e
• Segment Addition Postulate
• Substitution p.o.e
• Transitive p.o.e