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

The angle of elevation of X from Y is 30o. If XY = 40m, how high is X above the level of Y?
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  • A 10m
  • B 20m
  • C 20√3m
  • D 40m
  • E 50m
Correct Answer: Option B
Explanation:

XZ = 40 x sin30o

= 20m

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