9-7 Tessellations

Objectives

To identify figures that tessellate

To identify transformations and symmetries in tessellations

A Solve It demonstrates determining tessellations.
Image Long Description

A tessellation, or tiling, is a repeating pattern of figures that completely covers a plane, without gaps or overlaps. You can make tessellations with translations, rotations, and reflections. You can find shapes that tessellate in art (see Problem 1 below), nature (cells in a honeycomb), and everyday life (tiled floors).

Essential Understanding Some shapes can fit together in a repeating pattern that fills a plane without gaps or overlaps. The angle measures of polygons that fit together in this way have a special relationship.


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Table of Contents

Prentice Hall Geometry Chapter 1 Tools of Geometry Chapter 2 Reasoning and Proof Chapter 3 Parallel and Perpendicular Lines Chapter 4 Congruent Triangles Chapter 5 Relationships Within Triangles Chapter 6 Polygons and Quadrilaterals Chapter 7 Similarity Chapter 8 Right Triangles and Trigonometry Chapter 9 Transformations Chapter 10 Area Chapter 11 Surface Area and Volume Chapter 12 Circles Skills Handbook Reference Visual Glossary Selected Answers Index Acknowledgments