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Demonstrations 1 - 20 of 85
Ruler and Compass Construction of a Square with Doubled Area
Graphical Solution of a Quadratic Equation Using the Arithmetic and Geometric Mean
Graphical Solution of a Quadratic Equation Using a Result from Optics
Solve the Loculus of Archimedes
Doubling a Distance with a Compass
Proposition 30, Book XI, Euclid's Elements
Proposition 29, Book XI, Euclid's Elements
Hirano's Construction of a Regular Pentagon
Proposition 7, Book XII, Euclid's Elements
Three Proofs of the Pythagorean Theorem
The Euclidean Algorithm and Simple Continued Fractions
Dudeney's Proof of the Pythagorean Theorem
Equality of a Segment and an Arc in Archimedes's Spiral
Nicomedes's Mechanism for Constructing a Conchoid
Primitive Pythagorean Triples on a Curvilinear Grid Defined by Euclid's Formula
Archimedes' Approximation of Pi
The Eratosthenes Machine for Finding the Cube Root of Two
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