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16 December, 11:52

A 20 foot ladder is leaned against a wall. The top of the ladder leans fifteen feet above the ground on the wall. What is the angle formed by the base of the ladder and the ground

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  1. 16 December, 12:15
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    48.6°

    Step-by-step explanation:

    The relation between the side of a right triangle opposite the angle, the hypotenuse, and the angle is given by ...

    Sin = Opposite/Hypotenuse

    sin (angle) = (15 ft) / (20 ft)

    angle = arcsin (15/20) ≈ 48.6°

    The angle with the ground at the base of the ladder is about 48.6°.
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