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    tuesday16's Avatar
    tuesday16 Posts: 2, Reputation: 1
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    #1

    Feb 22, 2012, 03:51 PM
    If the angle of elevation to the sun is 60 degrees, how long is the shadow to the nea
    Suppose the sun casts a shadow off a 35-foot buliding. If the angle of elevation to the sun is 60 degrees, how long is the shadow to the nearest tenth of a foot?
    ojasdoshi's Avatar
    ojasdoshi Posts: 3, Reputation: 1
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    Feb 27, 2012, 10:13 PM
    If you draw the figure, you will realize that the building, shadow and the sunrays will form a 30-60-90 triangle. Remember that in a 30-60-90 triangle, the side opposite to 60 is root3 times the side opposite 30.
    Thus 35=root3 * shadow. So shadow is 35/root3 = 35/1.732 = 20.2 feet.
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