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Using Triangles to Find the Sum of Interior Angles
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Using Triangles to Find the Sum of Interior Angles

Using Triangles to Find the Sum of Interior Angles

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Author: Graham Pardun
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This lesson demonstrates how to use triangles to determine the sum of the interior angles of a polygon.
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Tutorial

Using Triangles to Figure Out the Sum of the Interior Angles of a Polygon

In this lesson, I'll show you how to carve up different kinds of polygons into triangles and use the properties of triangles to figure out what all the interior angles of the original polygon have to add up to!