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A ladder that leans against a building makes an angle of 49 degree with the ground and reaches a point on the building 12m above the ground Find the length of the ladder to the nearest meter?
Wiki User
∙ 10y ago
The ladder forms a right angle with the building: the ground and the building forming the right angle and the ladder forming the hypotenuse. If the length of the ladder is L metres, then
sin(49) = 12/L
So L = 12/sin(49) = 15.9 = 16 metres.
Wiki User
∙ 10y ago
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