### Home > GB8I > Chapter 11 Unit 12 > Lesson INT1: 11.1.1 > Problem 11-7

11-7.

* *and ,

*, 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.

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