In the diagram, O is the centre, \(\bar{RT}\) is a diameter, ∠PQT = 33° and...
MATHEMATICS
WAEC 2015
In the diagram, O is the centre, \(\bar{RT}\) is a diameter, ∠PQT = 33° and ∠TOS = 76°. Using the diagram, find the size of angle PRS.

- A. 76°
- B. 71°
- C. 38°
- D. 33°
Correct Answer: B. 71°
Explanation
In the diagram, < TRS = \(\frac{76^o}{2}\) = 38\(^o\)
Hence, angle PRS = 33\(^o\) + 38\(^o\)
= 71\(^o\)
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