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Home > CCG > Chapter 4 > Lesson 4.1.2 > Problem 4-18


The triangles shown below are similar. Homework Help ✎

  1. What is the ratio of side length to side length ?

  2. Use a ratio to compare the perimeters of and . How is the perimeter ratio related to the side length ratio?

  3. If you have not already done so, find the length of .

    In part (a), you found that the zoom factor between the two triangles is .
    Now use this information to find the perimeters of each triangle, then find the ratio between them.