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In the diagram above, PQ is the tangent to the circle RST at T.|ST| =...

Mathematics
WAEC 1994
In the diagram above, PQ is the tangent to the circle RST at T.|ST| = ST and ∠RTQ = 68o. Find ∠PTS
  • A. 68o
  • B. 62o
  • C. 61o
  • D. 56o
  • E. 34o
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Correct Answer: Option D
Explanation
∠TSR = 68o ∴ STR =
180-68/2
= 56o

PTS= 180-(68+56) = 56o
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