Suppose you are given the coordinates of the vertices of a polygon. What steps could you take to solve a problem involving the polygon's area? Plot the polygon on a grid using its vertices. If you can apply a formula for area of the polygon, use absolute value to find the lengths of the sides to find the area. Otherwise, divide the polygon into simpler shapes, such as quadrilaterals and triangles. Use absolute value to find the lengths of the sides of these simpler shapes. These lengths can be used to find the areas of the simpler shapes. The area of the polygon is the of the areas of the simpler shapes.