Area and Perimeter of Similar Polygons: Lesson

This Area and Perimeter of Similar Polygons: Lesson video also includes:

Find the square of the scale factor. A component of a large playlist on geometry discusses the ratios of the perimeters and areas of two similar polygons. The resource shows examples in finding the ratios that lead to a pattern.

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Instructional Ideas

  • Lead a discussion on whether there would be a similar ratio pattern in finding volumes of similar objects
Classroom Considerations

  • Assumes individuals know how to determine the scale factor of similar figures
  • The class needs to be comfortable with reducing ratios
Pros

  • Links to additional resources with similar polygons
  • Includes the arithmetic steps in working the examples
Cons

  • None