Triangle Proofs Practice

What is the "reason" for step 2 of the proof?

• reflexive property

• proof

• SAS
  ≅ thrm

• given

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

• ∡EDA≅∡DCB

• ∡AED≅∡BEC

• DE=CE

• ∡AED≅∡CED

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

• AD=DA

• AN = AH

• HD=ND

• HD=DN

What is the reason?

• Reflexive

• Symmetric

• Definition of Congruence

• Definition of Angle

What would be the correct "given" statements for this diagram?

• ∡A≅∡C, and segment DB is the angle bisector of ∡CDA

• BD=BD, and DB=DB

• ∡A≅∡C, and segment DB is the angle bisector of ∡CBA

• ∡B≅∡D, segment DB is the angle bisector of ∡DCA.

Identify the  missing statement or reason

• LN≅MJ

• JK≅NK

• MK≅LK

• ∠JKM≅∠NKL

Which of the following is not a valid reason to prove congruent triangles?

• ASA

• SAS

• SSS

• AAA

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

• Vertical Angle Theorem

• given

• reflexive property

• proof

What is the "statement" for step 2 of the proof?

• ∡JHI≅∡JKL

• JL=JI

• ∡H≅∡K

• HI=KL

The triangles are similar by...

• SAS

• AA

• ASA

• SSS