Tetrad (geometry puzzle)
In geometry, a tetrad is four simply connected planar regions in the plane, each pair which share a finite portion of common boundary. It was named by Michael R. W. Buckley in 1975 in the Journal of Recreational Mathematics. A further question was proposed that became a puzzle, whether the 4 regions could be congruent, with or without holes, other enclosed regions.
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Tetrad (geometry puzzle)
In geometry, a tetrad is four simply connected planar regions in the plane, each pair which share a finite portion of common boundary. It was named by Michael R. W. Buckley in 1975 in the Journal of Recreational Mathematics. A further question was proposed that became a puzzle, whether the 4 regions could be congruent, with or without holes, other enclosed regions.
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In geometry, a tetrad is four ...... holes, other enclosed regions.
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In geometry, a tetrad is four ...... holes, other enclosed regions.
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Tetrad (geometry puzzle)
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