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Sum of the angles of a triangle

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Demonstration of one of the fundamental theorems in Euclidean geometry.

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David Chandler — November 13, 2013 - 4:03 AM

Resource Type: Activity
Tags: angles geometry sum theorem triangle
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Target Group (Age): 11 – 14
Language: English (United States)

GeoGebra version: 4.2
Views: 1015

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License: CC-BY-SA, GeoGebra Terms of Use
Derived Resources: Copy of Sum of the angles of a triangle
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