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Math Help - Problem solving

  1. #1
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    Question Problem solving

    From an office window 42.5m above level ground, a building 156m tall at a distance of 104m is observed across a courtyard. Find the angle of depression of the base of the building.
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  2. #2
    Super Member

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    Hello, Kat.T!

    Did you make a sketch?


    From an office window 42.5m above level ground,
    a building 156m tall at a distance of 104m is observed across a courtyard.
    Find the angle of depression of the base of the building.
    Code:
                      *
                      |
               104    |
          * - - - - - +
          | * θ       |
          |   *       |
     42.5 |     *     | 42.5
          |       *   |
          |         * |
          * - - - - - *
               104

    We have: . \tan\theta \:=\:\frac{42.5}{104}

    Therefore . . .

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