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