WAEC Mathematics 2018 Objective — Question 23
Question 23 of 50 from the West African Examinations Council (WAEC) Mathematics 2018 Objective paper, with the correct answer and a full explanation.
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The angle of elevation of the top of a tree from a point 27m away and on the same horizontal ground as the foot of the tree is 30°. Find the height of the tree.
- A. 27m
- B. 13.5√3m
- C. 13.5√2m
- D. 9√3mCorrect
Explanation
h=27tan30°=27×(1/√3)=9√3m.
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