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Billiards in the Round

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Author:Ivars Peterson (MathLand)
Description: On a level, rectangular table, a practiced billiard player can return the balls to their original positions, repeat a shot, and obtain an identical result. The geometry of the table, however, can greatly influence the types of motion possible in a game. Going from a rectangle to a circle or an ellipse or to some sort of polygon introduces new elements into the game -- even chaos and unpredictability -- and offers a variety of intriguing mathematical puzzles.

Levels: High School (9-12)
Languages: English
Resource Types: Articles
Math Topics: Euclidean Plane Geometry

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