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5 November, 02:19

When a basketball hits a hard, level surface, it bounces off at the same angle at which it hits. Use the figure to find the angle at which the ball hit the floor.

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  1. 5 November, 03:47
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    Let the angle = x

    Using the figure below, to find x, setup the equation:

    x+70+x=180

    2x+70=180

    2x=110

    x=55°

    So the ball hits the surface at 55° and bounces back at 55°.

    Answer: 55°
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