Posts tagged exterior angles of triangles
Exterior angles of polygons

In this lesson we’ll look at exterior angles of polygons and the relationship between those and their corresponding interior angles. An exterior angle of a polygon is an angle that’s supplementary to one of the interior angles of the polygon, has its vertex at the vertex of that interior angle, and is formed by extending one of the two sides of the polygon (at that vertex) in the direction opposite (180º away from) that side.

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