In the Investigation section, collect data points by dragging the radius to
various lengths, and the click the "Add to Table" button to record the data in
the table. By default, the radius, diameter, circumference and area are shown in
In the Problems section, determine the answer to each question using the
applet, a calculator, or paper and pencil. And don't forget to indicate the
Some relationships can be discovered using the x/y button. Others will
require more investigation, but the graph should give you some insight.
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