Use the applet below to answer the questions at the bottom of the page.

1. What do you notice about the triangle and the circle? [br][br]2. Does your observation work for the rectangle and the circle? Why or why not?[br][br]3. What do you notice about the area of the triangle and the rectangle? [br][br]4. Can we predict what the area of the circle is? If so, what is your prediction and why? If not, why can't we predict it?