If this is the correct attachment of the problem, the measure of SRT in degrees is 90 degrees.
Lines TW and SV are perpendicular lines that meet on point R. These lines are called perpendicular lines because they intersect at a right angle.
So, TRV ≅ VRW means each is measured at a 90 degree angle.
TRS and SRW are also congruent and each measures 90 degrees.
