On a pie chart, there are four sectors of which three angles are 45°, 90° and 135°. If the smallest sector represents N28.00, how much is the largest sector?

  • A N96.00
  • B N84.00
  • C N48.00
  • D N42.00
jamb 2003mathematics

The correct answer is B. N84.00

Let the 4th angle be = x

∴ x + 45 + 90 + 135 = 360

x + 270 = 360

x = 360 - 270

x = 90

∴ smallest angle = 45o

45o = N28.00

1o = 28.00/45

135o = (28.00/45) (135/1)

= N84.00

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