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Pythagorean Golden Means

Show that the arithmetic mean, geometric mean and harmonic mean of a and b can be the lengths of the sides of a right-angles triangle if and only if a = bx^3, where x is the Golden Ratio.

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About 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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Classical Means

Use the diagram to investigate the classical Pythagorean means.

Mean Geometrically

Stage: 5 Challenge Level: Challenge Level:1

Area fomulas and a little trig will help.

 

Here is the diagram if you need some clues to get started: