Question

Which postulate or theorem proves that △QRS and △TRS are congruent?

​ AAS Congruence Theorem ​

​ HL Congruence Theorem ​

SSS Congruence Postulate

​ SAS Congruence Postulate ​

Answer 1

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Answer 2

SAS Postulate since we know QS and ST are congruent lengths (congruent symbol). We are shown that there is a right angle so the other side must also be a right angle. And we know that RS=RS because of reflexive property. WE have a side, an angle and a side (SAS)