### Home > CC4 > Chapter 5 > Lesson 5.3.1 > Problem 5-88

5-88.

Use angle relationships and the diagram below to write and solve an equation for *x*. Show all work. Homework Help ✎

**5-89. **The area of the trapezoid at right is 56 cm^{2}. What is the height, *h*? (Hint: The formula for the area of a trapezoid can be written as A = *b*_{1} + *b*_{2})*h*, where *b*_{1 }and *b*_{2} are the lengths of the bases.) Show all work. Homework Help ✎

How are these angles related? How can you use this relationship to find x?

They are alternate interior angles.