Texas Instruments
Texas Instruments: Perimeter, Circumference, and Area
Students find perimeters of rectangles and squares, as well as circumferences of circles. Students find areas of rectangles, squares, and circles. [Requires Adobe Reader.]
Texas Instruments
Texas Instruments: Perimeter of a Rectangle With Fixed Area
Students will investigate the relationship between the base of a rectangle with area of 35 or 36 and its perimeter.