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18 April, 11:02

A ladder is leaning against a building, forming a 70 degree angle with the ground. The base of the ladder is 8.2 ft from the base of the building.

What is the length of the ladder?

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  1. 18 April, 13:44
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    Cosine (70) = 8.2 / ladder

    ladder = 8.2 / cosine (70)

    ladder = 8.2 / 0.3420201

    ladder length = 23.9751991184
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