Mrs Kebeh stands at a distance of 110 m away from a building of vertical
MATHEMATICS
WAEC 2023
Mrs Kebeh stands at a distance of 110 m away from a building of vertical height 58 m. If Kebeh is 2 m tall, find the angle of elevation of the top of the building from her eye.
- A. \(27^0\)
- B. \(28^0\)
- C. \(20^0\)
- D. \(26^0\)
Correct Answer: A. \(27^0\)
Explanation
Tan\(\theta = \frac{opp}{adj}\)
Tan\(\theta = \frac{56}{110}\)
\(\theta = tan^1(0.5091)\)
therefore, \(\theta\) = 27° ( to the nearest degree)
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