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The Penguin dictionary of curious and interesting geometry David Wells, John Sharp
Publisher: Penguin

The distances of the touch points to the vertices is quite interesting. Cheap A companion volume to the author's Dictionary of Curious and Interesting Numbers, which focuses on arithmetic and number theory. "This is a fascinating, strange, and probably unique book, one that I will look at again and again. The Penguin Dictionary of Curious and Interesting Geometry. The Penguin Dictionary of Curious and Interesting Geometry . I first came across spirolaterals in The Penguin Dictionary of Curious and Interesting Geometry, by David Wells, who gives the swastika example but not its source. The Penguin Dictionary of Curious and Interesting Geometry_0140118136. 17; Dan Pedoe, Geometry: A Comprehensive Course; C. The Penguin Dictionary of Curious and Interesting Numbers. €�Julia Sets.” §5.4 in Mathematica in Action.