Pascal's Angle Trisection
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This Demonstration shows Pascal's angle trisection. The red segments are the same length. Vary so that the last red segment overlaps the top ray of angle
. Then
is one-third the size of
.
Contributed by: Izidor Hafner (July 2012)
Open content licensed under CC BY-NC-SA
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Reference
J. Bryant and C. Sangwin, How Round Is Your Circle?, Princeton, NJ: Princeton University Press, 2008 p. 107.
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