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A radio transmission tower is 170 feet tall. How long should a guy wire be if it is to be attached 7 feet from the top and is to make an angle of 30° with the ground? Give your answer to the nearest tenth of a foot

  • math - ,

    Draw a rt triangle:

    X = Hor. side.
    Y = 7 Ft = Ver. side.
    Z = Hyp. = Length of guy wire.
    A = 30 Deg.

    Z = Y/sinA = 7 / sin30 = 14 Ft.


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