### Home > INT1 > Chapter Ch11 > Lesson 11.1.1 > Problem 11-7

11-7.

In the diagram at right, * *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.

units