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Recreational Mathematics
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Demonstrations 141  160 of 904
Rigidity Testing of Frameworks
Dissecting a Square into a Sphinx
Dissection of Two {8/2}Prisms into One
Dissecting a Decagon into a Pentagram and Two Pentagons
Dissecting a Cross of Lorraine into a Square
The Mill Game
Traffic Jam: A Sliding Block Puzzle
Knight Paths
Triangle Mysteries
The Seven Bridges of Königsberg
Three Equal Segments from the Altitudes of a Triangle
Circumcircles of Two Midpoints and an Altitude
Bisecting the Area and Perimeter of a Triangle
Three Circles with Two Common Tangents
Reflections of a Line through the Orthocenter in the Sides of an Acute Triangle
Squares on a Line Segment
NearPenrose Shapes
Disk to Oval Seat Tops II
How Triple Powers of Integers Begin and End
Disk to Oval Seat Tops
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