In the diagram below, O is the centre of a circle NST. |NT| = |ST|
MATHEMATICS
WAEC 2023
In the diagram below, O is the centre of a circle NST. |NT| = |ST| and ∠NTS = 36°. Find the measure of the angle marked t.
- A. \(72^0\)
- B. \(54^0\)
- C. \(36^0\)
- D. \(108^0\)
Correct Answer: C. \(36^0\)
Explanation
t = ∠NTS (the angle between a tangent and a chord is equal to the angle in the alternate segment).
Therefore, t = 36°
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