### Home > CCG > Chapter 4 > Lesson 4.2.5 > Problem 4-118

4-118.

* * passes through point

*, then answer the questions below.*

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?Are the triangles congruent? Explain how you know.

Use the Pythagorean Theorem to calculate the length of

.