Geometry

INDEX
 

Introduction

Aims

Thales' theorem

Similar polygons

SIMILARITY
INTRODUCTION

This unit deals with some formulae connected to proportionality between segments and Thales' theorem. Rather than giving rigorous, step-by-step demonstrations, this unit offers the advantage of verifying conclusions and properties in a straightforward manner. 

To conclude, different examples of similarity in triangles and polygons in general is also focused on, using an interactive approach.

AIMS
  • To introduce the concept of proportionality between segments.
  • To work out the terms in a proportion.
  • To introduce Thales' theorem and similar polygons.
  • To construct similar polygons and understand how different measurements relate to each other.

  Miguel García Reyes
 
Spanish Ministry of Education. Year 2001
 
 

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