Trisecting an angle

Individual Research Projects Section 7.1

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Project 7.1

What are optical illusions?

What are the following optical illusions:

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Find some unusual optical illusions and illustrate with charts, models, advertisements, pictures, or
illusions.

References:

Martin Gardner, “Mathematical Games,” Scientific American, May 1970.

Richard Gregory, “Visual Illusions,” Scientific … See the whole entry

Reference Topics 7-1

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Euclid’s Elements can be found at:
http://aleph0.clarku.edu/~djoyce/java/elements/elements.html

These sites give some great examples of symmetry.
http://www.mcescher.com/?s=symmetry

Problem 1 presents an optical illusion. If you like this sort of problem you might enjoy checking out this site.
http://www.billiardworld.com/puzzles.html

You might be … See the whole entry