Is trianglePQS congruent to triangleRQS by HL? If so, name the legs that allow the use of HL.

Triangle P S R is shown with altitude S Q from vertex S to point Q on side P R. Side P S is marked congruent to Side S R.

Yes, triangle PQS is congruent to triangle RQS by HL (Hypotenuse-Leg).

The legs that allow the use of HL are PS and SR.