Java
applets (mainly proofs)
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Pythagoras' Theorem |
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Java
applets (mainly proofs)
Flash
movies
animated
proofs - University of Sheffield
Interactive
Pythagoras' Theorem - MathsNet
proofs, problems and other material
National
Library of Virtual Manipulatives
Manipulate shapes in this interactive
proof.
Proposition
47, Euclid's Elements Book 1 - David Joyce
Pythagoras'
theorem - Mathworld
proofs and background
biography
of Pythagoras - MacTutor History Archive
Pythagoras
of Samos - Mathgym
collection of essays on the influence
of Pythagoras and the Pythagoreans on Western civilisation
practice
at calculating sides in a right angled triangle
shortest
distance problems
generate
Pythagorean triples
list
of Pythagorean triples - Peter Alfred
patterns
in Pythagorean triples
de
Gua's theorem (generalisation of Pythagoras' theorem to 3 dimensions) -
Mathworld
The square of the area of the base
(i.e., the face opposite the right trihedral angle) of a trirectangular
tetrahedron is equal to the sum of the squares of the areas of its other
three faces.
Pythagorean
triples and the congruent number problem - University of Sheffield
An integer is a congruent number
if it is the area of a right-angled triangle with sides that are rational
numbers. The smallest congruent number is 5, the area of the right-angled
triangle with sides 3/2, 20/3 and 41/6.
Power
Page - Steven Dutch
Pythagorean triples and other things
about sums of powers