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°
Answer:
<em>The ratio of dogs to gerbils is 11:8</em>
Step-by-step explanation: