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WAEC Mathematics 2024 Objective — Question 43

Question 43 of 50 from the West African Examinations Council (WAEC) Mathematics 2024 Objective paper, with the correct answer and a full explanation.

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43. The area of a sector of a circle with radius 7 cm is 51.3 cm². Calculate, correct to the nearest whole number, the angle of the sector. [Take π = 22/7]

  • A. 60°
  • B. 120°Correct
  • C. 150°
  • D. 180°

Explanation

θ = (51.3×360×7)/(22×7²) ≈ 120°.

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