Tessellations

A tessellation is the tiling of polygons that fit perfectly together, that leave no gaps and do not overlap. You see tessellations every day and probably do not even realize it. In this video, you will explore tessellations and see which regular polygons can tessellate the plane. Your knowledge of interior and exterior angles will come in handy during this lesson. Click the player button to begin.

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Determining the Number of Sides of a Regular Polygon

Determining the number of sides of a regular polygon is going to require your knowledge of interior and exterior angles of a polygon. In this video, you will explore how to find the number of sides a polygon has when given the exterior or interior angle of a polygon. Click the player button to begin.

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Applications Involving Angle Measures of Polygons Review

Now that you have explored tessellations, composite tessellations, and how to determine the number of sides a polygon has when given the exterior or interior angle, review your knowledge in this interactivity. Click the player button to get started.