Introduction

Based on what you have already studied about congruent triangles and transformations such as dilations, look at the picture above of the many polygons. What do you think is the main difference between congruent and similar figures?

 

Lesson Objectives

Following successful completion of this lesson, students will be able to...

  • to decide if two given figures are similar
  • compute the scale factor if figures are similar
  • identify the congruent angles and the proportional sides of similar figures

Enduring Understandings

  • Similar polygons have corresponding angles that are equal and corresponding sides that are proportional.

The above objectives correspond with the Alabama Course of Study: Geometry standard: 15

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