In the diagram, POQ is a diameter, 0 is the centre of the circle and…

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Mathematics JAMB 1987

In the diagram, POQ is a diameter, 0 is the centre of the circle and TP is a tangent. Find the value of x

  • 30o checkmark
  • 40o
  • 45o
  • 50o

The correct answer is: A

Explanation

From the diagram, POQ is a diameter; o is the centre of the circle and TP is a tangent where RTP = 30o

RTP = RQP = x(at circumference = made by tangent outside the circle) i.e x = 30o
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