Triangle PQR is inscribed in a circle such that P, Q and R lie on the circumference. If PQ is the diameter of the circle and ∠PQR = 40°, then what is the value (in degrees) of ∠QPR?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 50º

PQ is the diameter: ∠PRQ = 90o
∠PQR = 40o
Hence,
∠QPR = 180o - 90o - 40o = 50o