In the diagram above, O is the center of the circle QRT and PT is…

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Mathematics WAEC 1989

In the diagram above, O is the center of the circle QRT and PT is a tangent to the circle at T. Calculate the angle x

  • 55o
  • 40o
  • 35o
  • 25o
  • 20o checkmark

The correct answer is: E

Explanation

∠QPT = xo = 180o - 125o - 35o = 20o
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