which line segment has the same measure ST?

Answer:
SR is the line segment has the same measure ST .
Step-by-step explanation:
In the Δ SXR and ΔSXT .
(1) RX = XT
(As given in the figure )
(2) ∠SXR = ∠ SXT = 90°
(As given in the figure)
(3) SX = SX
(Common sides of both triangle )
Thus by using SAS congurence property .
Δ SXR ≅ ΔSXT
Thus
ST = SR
(By using the corresponding sides of the congurent triangle .)
Therefore SR is the line segment has the same measure ST .