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Home > GC > Chapter 4 > Lesson 4.2.2 > Problem 4-65

4-65.

Examine the diagram at right. If passes through point , then answer the questions below.  

  1. Are the triangles similar? If so, make a flowchart justifying your answer.

    What do the tick marks on the angles mean? What is ? How can these help you determine if the triangles are similar?

  2. Are the triangles congruent? Explain how you know.

    Use the Pythagorean Theorem to calculate the length of .