Similar Triangles: Definition, Formula & Properties


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question 1 of 3

What makes two triangles similar?

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1. Solve for the missing side EF.

2. Solve for the missing side DF.

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About This Quiz & Worksheet

This quiz/worksheet combo will assess your knowledge of similar triangles and what makes them alike. You'll be asked to solve for the missing side in a couple of practice problems as well.

Quiz & Worksheet Goals

In these assessments, you will learn what you know about the following:

  • What makes two triangles similar
  • The definition of congruent
  • What does the arc inside each angle reveal

Skills Practiced

  • Information recall - access the knowledge you've gained regarding what makes two triangles similar
  • Knowledge application use your knowledge to answer questions about the definition of congruent and how it relates to the properties of similar triangles
  • Interpreting information - verify you can read information regarding what the arc inside each triangle reveals when you compare them with each other and interpret it correctly
  • Problem solving - use acquired knowledge to solve problems involving similar triangles

Additional Learning

Keep learning about the properties of similar triangles by reviewing the lesson called Similar Triangles: Definition, Formula & Properties. The lesson will cover the following areas:

  • A definition of corresponding sides in a triangle
  • The meaning of similar triangles in mathematics
  • Examples of similar triangles