The angle of a sector of a circle of diameter 8cm is 135°. Find the area of the sector [Take pi = 22/7].

  • A 270
  • B 350
  • C 302
  • D 430
waec 1989mathematics

The correct answer is C. 302

Area of a sector

\(\frac{θ}{360°} * Ï€r^2\)

= \(\frac{135}{360} * 3.142 * 16 * 16\)

= 301.6

≈ 302cm\(^2\)

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