Lessons

General Aptitude
2.1 Height and Distance - General Questions

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Q.

The angle of elevation of a ladder leaning against a wall is 60º and the foot of the ladder is 4.6 m away from the wall. The length of the ladder is:

View Answer

Correct choice: D

Explanation:

Let AB be the wall and BC be the ladder.

Then, ACB = 60º and AC = 4.6 m.

AC = cos 60º = 1
BC 2
BC = 2 x AC
  = (2 x 4.6) m
  = 9.2 m.
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