Answer:
1, 2, 3, and 5 statements are correct.
Step-by-step explanation:
In this question we will go through every options given.
(1)  ST ≅ ST by the reflexive property ( Correct )
(2) ∠RWS ≅ UWT because they are vertical angles. ( Correct )
(3) Δ RWS ≅ ΔUWT  by AAS ( Correct )
(4) Δ RST ≅ ΔUST by SAS ( Incorrect ) because for SAS property side RT                          should be equal to the side SU.
(5) ∠WTU ≅ ∠WSR  because CPCTC ( correct )
Therefore, 1, 2, 3, and 5 statements are correct.