hank6 hank6
  • 06-05-2017
  • Mathematics
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A 20-foot pole leaning against a wall reaches a point 18 feet above the ground .what is the angle which the pole makes with the ground to the nearest degree

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irspow
irspow irspow
  • 06-05-2017
sinα=h/L

α=arcsin(h/L)°  we are told that h=18 and L=20 so

α=arcsin(9/10)°

α≈64°  (to nearest whole degree)
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