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8-32.

Which of the triangles below are similar to at right? How do you know? Explain. Homework Help ✎

triangle

  1. triangle

  1. triangle

  1. triangle

  1. triangle

Notice that is an equilateral triangle. That means all sides and angles are equal in measure.

Triangles (a), (b), (c), and (d) are all similar because they are all equilateral triangles.
All three sides are proportional ((b), (c), and (d)) and sets of angles are equal in triangle (a).