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6 November, 09:30

A ladder is resting against a wall. The ladder and the ground make an angle of 42.5° and the ladder is 10 feet long. How far away from the wall is the ladder?

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  1. 6 November, 09:34
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    Cosα=x/L

    x=Lcosα, we are told the ladder is 10ft and α=42.5 so

    x=10cos42.5° ft

    x≈7.37 ft (to nearest hundredth of a foot)
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