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JAMB Mathematics 1993 Question 37

Question 37

Mensuration of Plane Shapes

Find the area of the sector of a circle with radius 3m, if the angle of the sector is 60°

  1. A.4.0m2
  2. B.4.1m2
  3. C.4.7m2
  4. D.5.0m2
Show the answer and explanation

Answer: C (4.7m2)

Explanation

Sector area = (60/360) × π × 3² = 1.5π ≈ 4.7m².