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Demonstrations 41  60 of 388
The Obedient Reflected Ray
Dissection of a Square and an Isosceles Right Triangle into a Square
Regular 2nGon to Rectangles Dissection
Squared Chain Puzzle
Angel Puzzle
Solve the Loculus of Archimedes
How Many Triangles in a SixPointed Star?
Princess and Witch Puzzle
Seven Touching Cylinders Puzzle
Kissing Coins
Area Maze Race
Bubble Chain Puzzle
Carramba Puzzle
Solving Decanting Problems by Graph Theory
27 Coins Balance Puzzle
Mazes on a Cylinder, Including Its Ends
Mazes on Various Map Projections of the Earth
8 and 8 Pitcher Puzzle
Mazes Produced by Random Spanning Trees
The Ellipse Problem of Steinhaus
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