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Izidor Hafner
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Demonstrations 1261  1272 of 1272
Lindgren's TwoTrianglestoOne Dissection
Quadrilateral Slide
Bradley's TwoTrianglestoOne Dissection
Loyd's TwoGreekCrossestoaSquare Dissection
Gerling's 12Piece Dissection of an Irregular Tetrahedron into Its Mirror Image
Parallelogram Slide
Double PSlide Dissection
Kelland's GnomontoSquare Dissection
Perigal's ThreeSquarestoOne Dissection
Cross Product of Vectors in the yz Plane
Dintzl's Law of Cosines Dissection
Hunger's Law of Cosines Dissection
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