Trisecting an Angle Using a Lemniscate
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The angle to trisect, say , is between the longer leg of the carpenter's square (the brown "L" shape) and the polar axis
. Translate the carpenter's square so that it touches the curve at the point
. The angle
between the radius vector
and the polar axis
is one-third of the given angle
.
Contributed by: Izidor Hafner (February 2013)
Open content licensed under CC BY-NC-SA
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