This activity is adapted from the [url=https://www.geogebra.org/m/wxq7cxhn]activity created by Yvonne Lai[/url] at the University of Nebraska-Lincoln.

Below you'll find a simulation of the billiard geometry.[br][list][*]Move the "Departure" to set where the ball's path starts.[/*][*]Move "First bounce" to set where the ball will first hit the wall.[/*][*]Press "Start" to set the ball moving and "Stop" to stop its path.[/*][*]Press "Reset" to reset the simulation.[br][/*][/list]