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Home > GC > Chapter 5 > Lesson 5.3.2 > Problem 5-82


Triangle, A D E, horizontal base, A D, with horizontal segment, B C, drawn inside. In the diagram at right, and  are similar. If , , and , then what is ?  

Separate the triangles into two similar triangles.

What is the length of ? Once you know this, since the triangles are similar, the ratios of corresponding sides are equal.
Remember to set up proportions.