Q. A circle has points P, Q, R on a circle in such a way that angle PQR is 60 deg and angle QRP is 80 deg. Calculate the angle subtended by an arc QR at the centre.
A) 80 deg
B) 40 deg
C) 120 deg
D) 100 deg
✔ Correct Answer: 80 deg
Exam Insight
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A) 80 deg
B) 40 deg
C) 120 deg
D) 100 deg
✔ Correct Answer: 80 deg
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