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WAEC Mathematics 2018 Objective — Question 18

Question 18 of 50 from the West African Examinations Council (WAEC) Mathematics 2018 Objective paper, with the correct answer and a full explanation.

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Find the value of t in the diagram above.

  • A. 63°
  • B. 117°
  • C. 126°Correct
  • D. 234°

Explanation

Angle on straight line = 180−117=63°. Angle at centre = 2×angle at circumference = 2×63=126°.

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