Complete the two-column proof.

given:
rt = ru
ts = us

prove:
△rst ≅ △rsu

statement reason
1. rt = ru; ts = us 1. given
2. rs = rs ?
3. △amd ≅ △bmc 3. sss
which of the following options best completes reason #2 in the triangle congruency proof?

vertical angles are equal
symmetric property of equality
reflexive property of equality
distributive property of equality

2. RS=RS

Reason : Reflexive property of equality.

Step-by-step explanation:

Given RT=RU

TS=US

To prove that

Proof:

1. Statement: RT=RU; TS= US

Reason: Given in question

2.Statement:  RS=RS

Reason: Reflexive property of equality.

Reflexive property: It is that property of equality which define a relation with itself.

3. Statement:

Reason: SSS ( Side -SIde -Side congruence property of triangles)

Hence proved.

The correct answer is reflexive property of equality .