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

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
  • 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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