precal

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A pole 12 meters tall is perpendicular to level ground. A taut wire that is 20 meters long extends from the top of the pole to the ground. What is the angle of elevation, to the nearest degree, from the bottom of the wire to the top of the pole?

  • precal -

    The pole is the ver. side of a rt. triangle; the wire is the hyp. of the
    triangle.

    sinA = Y / r = 12 / 20 = 0.6,
    A = 36.9 Deg.

  • precal -

    36.8

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