NECO Mathematics 2007 Objective — Question 39
Question 39 of 60 from the National Examinations Council (NECO) Mathematics 2007 Objective paper, with the correct answer and a full explanation.
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A hunter 1.5m tall observes the angle of elevation of a bird on top of a tree to be 60 degrees. If the hunter is 100m from the bird's base, find the height of the tree to one decimal place.
- A. 86.6m
- B. 88.1mCorrect
- C. 120.5m
Explanation
x = 100sin60 = 86.6m. Height of tree = x+1.5 = 88.1m.
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