Question

what is st? st = \boxed{} submit

Explanation:

Step1: Identify the perpendicular bisector

The line through \( R \) is a perpendicular bisector of \( SU \) (since it has a right angle and marks indicating \( SR = RU \)). By the Perpendicular Bisector Theorem, any point on the perpendicular bisector is equidistant from the endpoints of the segment. So \( ST = UT \).

Step2: Determine \( ST \)

Given \( UT = 57 \), and \( ST = UT \) (from the Perpendicular Bisector Theorem), we conclude \( ST = 57 \).

Answer:

\( 57 \)