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 POE
• Transitive POE
• Symmetric POE
• Distributive POE

Tags

CCSS.HSA.REI.A.1

Which is the correct reason for statement 2 in the proof?

• Given
• Transitive Property
• Definition of Congruent Angles
• Vertical Angles are congruent.

Tags

CCSS.7.G.B.5

What is the missing statement in the proof?

• 2m∠ABD=m∠ABD+m∠ABD
• m∠ABD=m∠DBC
• m∠ABC=m∠ABC
• m∠ABD+m∠ABD=m∠ABD+m∠DBC

Tags

CCSS.HSG.CO.C.9

What is the missing statement in the proof?

• m∠ABD+m∠DBC=m∠ABC
• m∠ABD=m∠DBC
• m∠ABC=m∠ABC
• none of the other choices are correct

Tags

CCSS.7.G.B.5

Which symbol means "perpendicular"?

• ∏
• ∥
• ∠
• ⊥

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

If <M = <L then <L = <M

• Transitive POE
• Substitution POE
• Symmetric POE
• Reflexive POE

Tags

CCSS.HSG.CO.C.9

What is the missing statement in the proof?

• Subtraction p.o.e.
• Substitution p.o.e.
• Transitive p.o.e.
• Symmetric p.o.e.

Tags

CCSS.HSG.SRT.B.5

What is the missing statement in the proof?

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

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