This math chapter workbook on "Area of Polygons" focuses on finding the area of various polygons. In some problems, coordinates are also given. For example on one page students need to solve for the area of a triangle given the points (-4, 4), (-4, -2), and (6, 0). They can start by plotting these points on a coordinate graph. Once plotted, they will notice that the points (-4, 4) and (-4, -2) form a vertical line, making it the triangle's height. The length of the height is 6. The point (6, 0) can be connected horizontally to form the base of this triangle. To find this base's length, count horizontally from x = -4 to x = 6, which gives you a base of 10 units. Then, students must remember the area formula for triangles to find the area. Other pages in this workbook contain various problems that involve calculating the area of different polygons.