Discover the secret of this special ratio and the history of how other cultures came upon it. How many digits can you memorize?
The Joy of Pi by Provides historical information, anecdotes, trivia, cartoons, poems, limericks, and jokes about the transcendental number pi.
Shapes in math, science and nature squares, triangles and circles by A collection of activities that provide information about how squares, triangles, and circles are used in math, science, and nature.
Why Pi? by Focusing on how people from ancient Egyptians to modern scientists have used numbers to measure things through the ages. Includes games, puzzles, brainteasers, and fun facts.
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