06-05-2017
Mathematics

contestada

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

Respuesta :

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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