20. Joe is standing on top of Marina Towers looking at the Leo Burnett World Headquarters building across the Chicago River. It is

Question

20. Joe is standing on top of Marina Towers looking at the Leo Burnett World Headquarters building across the Chicago River. It is 880 feet between buildings. Joe finds the angle of elevation to the top of the Burnett building to be 8 degrees and the angle of depression to the ground level to be 20 degrees. How tall is the Burnett building to the nearest foot?​

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1 month 2022-12-24T17:48:15+00:00 1 Answer 0 views 0

Answer ( 1 )

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    2022-12-24T17:49:40+00:00
    The height of the Burnett building to the nearest foot be is 444 feet

    What is angle of elevation and depression?

    The angle from the horizontal to a point or the line of sight is measured with angles of elevation and depression.
    when the points is high above the line of sight we have angle of elevation however when the line of sight is below the horizontal we have angle of depression
    Given data
    distance between the two buildings ( horizontal ) = 880 feet
    angle of elevation = 8 degrees
    angle of depression = 20 degrees
    applying Trigonometry relations
    for angle of elevation
    tan 8 = h1 / 880
    h1 = 123.676 feet
    for angle of depression
    tan 20 = h2 / 880
    h2 = =880 * tan 20
    h2 = 320.294
    let the height of the Burnett building to the nearest foot be h
    h = h1 + h2
    h = 123.676 + 320.294
    h = 443.97
    h = 444 feet
    Read more on angle of elevation and depression here: https://brainly.com/question/15580615
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