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10 September, 23:14

A fireman is standing 25 m due west of the burning building. If the angle of elevation of the ladder is 51°, how long is his ladder (round to the nearest meter) ?

A) 33 meters

Eliminate

B) 34 meters

C) 39 meters

D) 40 meters

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Answers (2)
  1. 10 September, 23:25
    0
    C) 39 meters ...
  2. 10 September, 23:37
    0
    Cos 51 = 25/h, where h is the height of the ladder. So h = 39.7, which rounded is 40 meters
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