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Similar Polygons

Similar Polygons

Description:
  1.  

    Define similarity and present that the angles between similar figures are congruent.

  2.  

    Present that the corresponding side lengths of similar figures are proportional.

  3.  

    Present how to identify corresponding parts of similar polygons.

  4.  

    Demonstrate how to find missing side lengths of similar polygons using proportions.

  5.  

    Demonstrate how to find the scale factor between similar polygons.

  6.  

    Present how if two polygons are similar then the ratio of their perimeters is equal to the ratio of their corresponding side lengths.

  7.  

    Provide examples that allow practice identifying similar figures, as well as solve for unknown variables and side lengths.

 

This packet should help a learner seeking to understand similarity between figures.

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Tutorial

Introduction to Similarity

This video introduces similarity and presents the facts that corresponding angles are congruent and corresponding sides are proportional in similar polygons.

Finding Corresponding Parts of Similar Polygons

This video presents how to identify corresponding parts of similar polygons.

Finding Unknown Side Lengths Using Similarity

This video demonstrates how to find the scale factor between similar polygons, and how to find missing side lengths of similar polygons using proportions.

Perimeters of Similar Polygons

This video presents how if two polygons are similar then the ratio of their perimeters is equal to the ratio of their corresponding side lengths.

Practice Problems

This slideshow provides several examples that allow practice identifying similar figures, as well as solving for unknown variables and side lengths.