Perimeter+and+area+of+regular+and+irregular+plane+figures

[|Dividing up the area] In this TI-73 activity, students will use the Geoboard application to compare the areas of squares, rectangles, and parallelograms to the area of the triangles that divide each of them. They are to determine a formula for the area of a triangle. Then students will compare parallelograms and rectangles that have the same area to determine the relationship between the two quadrilaterals. As an extension, students will use what they have learned in the activity to find the area of complex figures.Type in the content of your new page here.
 * Graphing calculator lesson**