Areas of Polygons and Circles

Section 11-2

Activity Name Activity Description
Area Explorer Students are shown shapes on a grid after setting the perimeter and asked to calculate areas of the shapes.
Shape Explorer The applet creates an irregular shape on a grid. Students determine area and perimeter of the given shape and check their answers with input to the applet.
Triangle Explorer The applet creates a right triangle on a grid. Students determine area of the triangle and check their answers with input to the applet. The applet also supplies a 'hint' function that outlines a rectangle containing the original triangle.