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Home > GC > Chapter 3 > Lesson 3.2.4 > Problem 3-80

3-80.

Determine which of the following pairs of triangles are similar. Explain your work. Homework Help ✎

  1. 3-90a diagram

    Find the missing angle measure for each triangle to see if applies.

    The triangles are not similar because they have different angle measures.

  1. 3-90b diagram

    Find the missing angle measure for each triangle to see if applies.

  1. 3-90c diagram

  • Write a ratio for each pair of sides. If the triangles are similar, all three ratios should be equal.

    Is this true?