75o
37\(\frac{1}{2}\)o
127\(\frac{1}{2}\)o
105o
Correct answer is D
PSO = 90o(angle in a semicircle)
SPO = 180o - (90o + 15o) = 75o
< QRS = 108o - 75o
= 105o(opposite angles in cyclic quadrilateral are supplementary)
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