Answer:
The correct option is 4.
Step-by-step explanation:
According to the HL postulate of congruent triangles, two right angled triangle are congruent if hypotenuse and a corresponding leg are congruent.
From the given figure it is clear that triangle QRS and triangle QTS are two right angled triangles.
In triangle QRS and triangle QTS,
[tex]QS=QS[/tex] (Common side and hypotenuse)
[tex]TS=QR[/tex] (Given)
Since hypotenuse and one corresponding leg of both triangles are congruent, therefore by HL postulate of congruent triangles both triangles are congruent.
[tex]\triangle SRQ\cong \triangle QTS[/tex]
Therefore the correct option is 4.
