### Home > CCG > Chapter 5 > Lesson 5.1.4 > Problem 5-41

5-41.

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

Notice that

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 2 sets of angles are equal in triangle (a).