The problem with the pool table
One of the most geometric games there is the “Billiard game”, in which using a drum with a wad (a pool cue) on a ball, we must ensure that this impact on one or more other arranged in a rectangular table. With the “The taco de bill” effects can be given to balls, but if you just hit them in the center, behavior can be compared to the classical transformations that are studied in the axial symmetries.