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In the diagram above, O is the center of the circle QRT and PT is a tangent to the ...



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
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  • A 55o
  • B 40o
  • C 35o
  • D 25o
  • E 20o
Correct Answer: Option E
Explanation:
∠QPT = xo = 180o - 125o - 35o = 20o

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