A ladder, 6m long, leans against a vertical wall at an angle 53° to the...
MATHEMATICS
WAEC 2003
A ladder, 6m long, leans against a vertical wall at an angle 53° to the horizontal. How high up the wall does the ladder reach?
- A. 3.611m
- B. 4.521m
- C. 4.792m
- D. 7.962m
Correct Answer: C. 4.792m
Explanation
Sin 53 = \(\frac {h}{6} \)
h = 6 sin 53 = 6 x 0.7986
= 4.792m
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