Q4. In the given figure, \( P R=S Q \) and \( P Q \perp Q R \). Also SR \( \perp Q R \). State which of the following statement is true. Justify your answer.
(a) \( \triangle P Q R \simeq \triangle S Q R \)
(b) \( \triangle P Q R \simeq \triangle S R Q \)
(c) \( \triangle P Q R \simeq \triangle Q R S \)
