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The Polygon Angle Sum Theorems

The Polygon Angle Sum Theorems. 3-4. Polygon. A polygon is a plane closed figure with at least three sides. The sides intersect only at their endpoints, and no adjacent sides are collinear. Naming a Polygon. When naming a polygon, you name the vertices in order. Classifying Polygons.

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The Polygon Angle Sum Theorems

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  1. The Polygon Angle Sum Theorems 3-4

  2. Polygon • A polygon is a plane closed figure with at least three sides. The sides intersect only at their endpoints, and no adjacent sides are collinear.

  3. Naming a Polygon • When naming a polygon, you name the vertices in order.

  4. Classifying Polygons

  5. Convex vs. Concave • Diagonal – a line segment connecting two vertices of a polygon • Convex Polygon – has no diagonal with points outside the polygon • Concave Polygon – has at least one diagonal with points outside of the polygon

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