![background image](http://html.mh-extra.com/html/texas-instruments/cabri-geometry-ii/cabri-geometry-ii_manual-book_1097124024.webp)
1-16 Chapter 1: Learning the Basics
Copying permitted provided TI copyright notice is included
© 1997, 1999 Texas Instruments Incorporated
Constructing Objects
(Continued)
4.
Choose
Triangle
from the
Lines
toolbox.
5.
Move the
#
to any point of the circle (the cursor message
On this circle
appears), and click once.
6.
Move the cursor to a second and third point on the
circle, clicking once at each point.
A triangle becomes inscribed in the circle.
7.
Choose
Pointer
from the
Pointer
toolbox.
8.
Move the
!
cursor near the center point (the cursor
message
This point
appears).
Press and hold down the mouse button until the
%
appears, and drag the center point around the drawing
window.
Note
: The radius of the circle remains unchanged.
9.
Move the
!
near the circumference of the circle (the
cursor message
This circle
appears).
Press and hold down the mouse button until the
%
appears, and drag the circumference.
Note
: The center point of the circle remains fixed while
the radius changes, and the vertices of the triangle stay
on the circle.
10. Move the
!
near a vertex of the inscribed triangle (the
cursor message
This point
appears).
Press and hold down the mouse button until the
%
appears, and then drag the point.
Note
: The point can only be moved along the circle.
If you move the pointer while creating points, Cabri Geometry II reverts to dragging. This feature
anticipates your intent to modify your construction without requiring you to return to the
Pointer
toolbox. However, it can create some confusion if you are creating points quickly and
inadvertently move the pointer while pressing the mouse. In this case, a point will not be created.
On this circle