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Finding Perimeter & Area of Similar Polygons

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Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

Angle A and Angle D are corresponding angles of similar triangles. If Angle A equals 43 degrees, what is the measure of Angle D.

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1. Rectangles ABCD and EFGH are similar polygons. Rectangle ABCD has dimensions of 12 cm by 20 cm. The scale factor between the two rectangles is 3. What are the dimensions of Rectangle EFGH?

2. The perimeter of triangle ABC is 30 ft. Triangles ABC and DEF are similar and have a scale factor of 1/2. What is the perimeter of triangle DEF?

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About This Quiz & Worksheet

You can evaluate what you know about finding the perimeter and area of similar polygons with this quiz and worksheet combo. This resource offers the chance to see if you can correctly use this concept to solve unknown measurements.

Quiz & Worksheet Goals

The intention for this quiz and worksheet is to examine what you know about:

  • How angles relate in similar polygons
  • Determining the dimensions of a similar polygon
  • Finding the perimeter of a similar polygon
  • Understanding scale factor

Skills Practiced

  • Information recall - see if you can remember how to measure angles in similar polygons
  • Knowledge application - use your knowledge of finding the perimeter of a similar polygon to answer a question about it
  • Problem solving - use what you know about determining the area of a similar polygon to solve problems

Additional Learning

You will find a more extensive overview of this topic in the lesson, Finding Perimeter & Area of Similar Polygons. In this lesson, you'll learn more about:

  • What a polygon is
  • What makes polygons similar
  • Understanding perimeter and area
  • Scale factor
  • Solving for the area or perimeter of a similar polygon
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