A Demonstration of Pythagoras' Theorem

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This proof of Pythagoras' Theorem uses similar triangles and lengths rather than areas. It's therefore more closely knit to what Pythagoras' Theorem is actually about. It also generalises to a proof of the cosine rule.

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Andrew Stacey — January 31, 2016 - 7:58 PM

Resource Type: Activity
Tags: pythagoras trigonometry
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Target Group (Age): 14 – 19+
Language: English

GeoGebra version: 5.0
Views: 951

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License: CC-BY-SA, GeoGebra Terms of Use

A Demonstration of Pythagoras' Theorem

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