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The dangerous ratio
This article for pupils and teachers looks at a number that even the great mathematician, Pythagoras, found terrifying.
Pythagoras' theorem
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articleAll is number
Read all about Pythagoras' mathematical discoveries in this article written for students.
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articleAbout Pythagorean golden means
What is the relationship between the arithmetic, geometric and harmonic means of two numbers, the sides of a right angled triangle and the Golden Ratio?
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articleIncircles explained
This article is about triangles in which the lengths of the sides and the radii of the inscribed circles are all whole numbers. -
articleSquareo'scope determines the kind of triangle
A description of some experiments in which you can make discoveries about triangles. -
articlePicturing Pythagorean triples
This article discusses how every Pythagorean triple (a, b, c) can be illustrated by a square and an L shape within another square. You are invited to find some triples for yourself.
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articlePythagorean triples II
This is the second article on right-angled triangles whose edge lengths are whole numbers.
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articlePythagorean triples I
The first of two articles on Pythagorean Triples which asks how many right angled triangles can you find with the lengths of each side exactly a whole number measurement. Try it!