Module 6
1. Module 6
Module 6: Triangles and Other Polygons
Module 6 Introduction

© Elena Schweitzer/10651880/Fotolia
Board games are popular among all peoples of the world. Some of the games in the photograph have a long history. Backgammon, the first game board shown in the photograph, originated from the Royal Game of Ur and was played in Mesopotamia 5000 years ago. Chess originated in India in the sixth century and became popular in Europe 1000 years ago.
A common feature of these board games is geometry, which is an integral part of the play. On the boards you can see repeated patterns of triangles, squares, and hexagons, just to name a few. There is no escape from mathematics!
In this module you will explore the geometry of the triangle and other polygons. You will begin by examining similar polygons and how their sides and angles are related. Then your focus will turn to the triangle. You will examine how the relationships among similar triangles can be used to model and solve a variety of practical problem situations.
The module concludes with an exploration of the right triangle and the Pythagorean Theorem. In every lesson there will be references to sports and art. You will be asked to relate each new geometric concept to your Unit 3 Project topic, and you will consider the following Module 6 question:
- How can the Pythagorean Theorem and the relationships among similar polygons be used to solve practical problems?
Save a copy of the Module 6 Glossary in your course folder now.