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March 27, 2017

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a worker walked 8ft. upa ramp and was 3ft. above ground level. If he walkes an additional 12ft. up the ramp,how many ft. will he be from the ground?

  • geometery - ,

    one could say

    8/3 = 12/height

    h(8/3) = 12

    h = (12x3)/8

    h = 4.5


    or use trigonometry and say

    sinX= 3/8

    X = (1/sin)3/8

    X = 22.02 which is the angle of the incline

    so

    sin(22.02) = h/12

    12sin(22.02) = 4.5

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