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.
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°.