WAEC Mathematics 2022 Objective — Question 31
Question 31 of 50 from the West African Examinations Council (WAEC) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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Find ∠SNR.
- A. 36°
- B. 42°
- C. 54°
- D. 72°Correct
Explanation
Since MNR is tangent to the circle at N, ∠ONM=90°. ∠SNR = 90°+∠OSN... using the tangent-chord relationships in the diagram, ∠SNR = 72°.
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