A ladder is placed along a wall of a house such that its upper end is touching the top of the wall. The foot of the ladder is 2 m away from the wall and the ladder is making an angle of 60° with the level of the ground. Determine the height of the wall.
Let the length of the wall = h (m)
In ∆ABC,
tan60°= 
√3 = 
h = 2√3 m
Therefore length of the wall is 2√3 m
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