
7.
Enter radius(GC) and tap . The radius is displayed. Use to verify both of these
measurements so that they will be available in Plot view.
Note that the syntax used here is the same as you use in the CAS to calculate the properties of
geometric objects.
The Geometry functions and their syntax are described in Geometry functions and commands
on page 189.
8.
Press to go back to Plot view. Now, manipulate the circle in some way that changes its area and
radius. For example, select the center point
(A) and use the cursor keys to move it to a new location.
Notice that the area and radius calculations update automatically as you move the point. Remember to
press when you are nished.
NOTE: If an entry in Numeric view is too long for the screen, you can press to scroll the rest of the
entry into view. Press to scroll back to the original view.
168 Chapter 9 Geometry
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