The angle of elevation of X from Y is 30o. If XY = 40m, how…

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Mathematics WAEC 1989

The angle of elevation of X from Y is 30o. If XY = 40m, how high is X above the level of Y?

  • 10m
  • 20m checkmark
  • 20√3m
  • 40m
  • 50m

The correct answer is: B

Explanation

XZ = 40 x sin30o
= 20m
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