Similarity of Triangles

Similar triangles don't only look very much alike, but they also have a unique relationship between the length of their sides. This lecture series describes the properties of similar triangles. Watch the videos and complete the interactive exercises.

Practice

Determine similar triangles: Angles - Questions

1. Which triangles are similar to \triangle A B C?


Choose 1 answer:



  1. \triangle J K L \text { only }

  2.  
    \triangle M N P only
  3. Both
  4. Neither

2. Which triangles are similar to \triangle A B C?


Choose 1 answer:

  •  
    \triangle Q R S only

  •  
    \triangle X Y Z only
  • Both
  • Neither

3. Which triangles are similar to \triangle A B C?


Choose 1 answer:

  •  
    \triangle D E F only

  •  
    \triangle I H G only
  • Both
  • Neither

4. Which triangles are similar to \triangle A B C?



Choose 1 answer:


  • \triangle MPN only

  •  
    \triangle QRS only
  • Both
  • Neither