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Gardner's Problem
A red metal sheet has the shape of a two-foot square with semicircles on opposite sides. If a disk with a diameter of two feet is removed from the center, what is the area of the remaining metal?
Contributed by:
Izidor Hafner
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Reference
[1] M. Gardner,
The Colossal Book of Short Puzzles and Problems
, (D. Richards, ed.), New York: W. W. Norton & Company, 2006 p. 109.
RELATED LINKS
Three Dissections by Leonardo da Vinci
(
Wolfram Demonstrations Project
)
Dissecting a Disk with Six Segments Deleted to a Hexagon
(
Wolfram Demonstrations Project
)
Jug-to-Square Dissection
(
Wolfram Demonstrations Project
)
PERMANENT CITATION
Izidor Hafner
"
Gardner's Problem
"
http://demonstrations.wolfram.com/GardnersProblem/
Wolfram Demonstrations Project
Published: May 23, 2014
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