### Home > GC > Chapter 7 > Lesson 7.2.5 > Problem7-86

7-86.

Find the area and perimeter of the trapezoid at right.

Don't assume the trapezoid is isosceles even though it looks like it.
Start by solving for $x$ in the diagram, then solve for $y$, then find the length of the unknown side of the trapezoid.

$\text{Area}=42\; \text{square units}$