Triangle Proofs

What is statement #2?

• ∠ABC≅∠EDC
• ∠BCA≅∠DCE
• BC≅CD
• ∠E≅∠A

What is reason #3?

• SAS
• ASA
• SSS
• AAS

What is reason #1?

• Reflexive Property
• Definition of Bisect
• Prove
• Given

What is reason #4?

• ASA
• SAS
• HL
• AAS

What is reason #4?

• Reflexive Property
• Definition of Midpoint
• Vertical angles are congruent.
• Given

What is the missing piece of information required to prove these triangles congruent?

• QY ≅ QY
• NY ≅ PY
• ∠N ≅ ∠P
• QY is the perpendicular bisector

What are the 2 missing pieces of information?

• Transitive Property, SAS(Side-Angle-Side)
• Reflexive Property, SAS(Side-Angle-Side)
• Transitive Property, SSS(Side-Side-Side)
• Reflexive Property, SSS(Side-Side-Side)

What is the "statement" for step 3 of the proof?

• HT=TA
• HA=AH
• MA=AM
• MA=MH

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

• Prove
• Given
• Reason
• Statement

What is the "statement" for step 3 of the proof? 

• ∡EDA≅∡DCB
• ∡AED≅∡BEC
• DE=CE
• ∡AED≅∡CED