Question

What is the area of a quadrilateral with vertices at (-2,-6),

(1,6), (-2,0), and (1,0)? Enter the answer in the box.
units squared

Answer 1

Check the picture below.

so the quadrilateral is really two triangles, each with a base of 3 and a height of 6

`\stackrel{\textit{area of the two triangles}}{2\left[ \cfrac{1}{2}(\underset{b}{3})(\underset{h}{6}) \right]\implies 2(9)\implies} \text{\LARGE 18}`