geometry

a self supporting ladder placed so that the angle between the ladder and the ground is 75.5" can be used to test whether the ladder can support a certain load. The diagram represents a ladder placed next to a window that is 20feet above the ground. What is the length of the ladder ? Round to the nearest length.>

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asked by shan
  1. If the length is x, then

    20/x = sin 75.5°

    Now just solve for x.

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    posted by Steve
  2. 20

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