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2 December, 09:59

40 foot ladder is leaning against a building. The foot of the ladders is 32 feet

from the building. Find the angle that the ladder makes with the building.

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Answers (1)
  1. 2 December, 12:03
    0
    Answer: 18°24'

    cos

    Explanation:

    Use equation for cos α=b/c

    b=32

    c=40

    cosα=32/40

    cosα=4/5

    csc=71.62°

    α=71.62°

    90°+α+β=180°

    β=180-α-90

    β=180-71,62-90

    β=18.4°

    β = 18°24'
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