Proofs of Triangle Congruence

What is the correct choice for Statement 5?

• SAS

• Definition of Congruence

• Prove

• CPCTC

If DA is perpendicular to IE, then we can immediately conclude that

• IA=AE

• <IAD = <DAE

• <IDA=<EDA

• <IAD and <DAE are right angles

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

• Proof

• Def. of Midpoint

• Reflexive Property

• Vertical angle Theorem

What is the correct choice for Reason 4?

• ⊿GHI ≅ ⊿JKL

• ⊿GHI ≅ ⊿KLJ

• ⊿GHI ≅ ⊿LJK

• ⊿GHI ≅ ⊿LKJ

What is the correct choice for Reason 4?

• SSS

• SAS

• ASA

• AAS

If AD bisects <EDI, then

• <ADE=<IDA

• IA=AE

• ID=ED

• All of the above

If DA is the perpendicular bisector or EI, then

• <IAD and <DAE are right angles

• DI=DE

• EA=IA

• Both 1 and 3 are correct

When using hypotenuse leg (HL) in a proof, you must first state ...

• CPCTC.

• there are right triangles.

• that vertical angles are congruent.

• the reflexive property.

If DA bisects IE, then

• ID=ED

• IA=EA

• <IDA=<EDA

• <IAD and <EAD are right angles

What is Statement?

• ∠QPR ≌ ∠STR

• ∠PQR ≌ ∠STR

• ∠QRP ≌ ∠TSR

• ∠QRP ≌ ∠TRS