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JAMB Mathematics 1986 Question 38

Question 38

Mensuration of Plane Shapes

An arc of a circle of radius 6cm is 8cm long. Find the area of the sector.

  1. A.5⅓cm2
  2. B.24cm2
  3. C.36cm2
  4. D.48cm2.
Show the answer and explanation

Answer: B (24cm2)

Explanation

Area of a sector = ½ × radius × arc length = ½ × 6 × 8 = 24cm².