Device and method for solving circles
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United States of America Patent
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-
Mar 9, 2004
Grant Date -
N/A
app pub date -
Nov 8, 2002
filing date -
Nov 8, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A combination of devices that demonstrate visually and on an intuitive level mathematical principles relating to the circle including the number .pi., the relationship between circumference, diameter, radius and .pi., and the relationship between the area of a circle formed of circle sectors and an approximate parallelogram obtained by rearranging the circle sectors.
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