Texas Instruments TI-89 User Manual page 46

Rotating and Dilating Objects
Rotating and
Dilating Objects by
Freehand
Tip: Drag the object away
from its center to expand, or
toward its center to contract.
Drag the object in a circular
motion to rotate.
Tip: Drag the object away
from its defined point to
expand and rotate or toward
its center to contract and
rotate.
TI-89 / TI-92 Plus / Voyage™ 200 PLT Cabri Geometry App
(continued)
The tool in the
Rotate & Dilate
selected object about its geometric center or a defined point.
To rotate and dilate an object about its
geometric center:
1. Create a triangle as shown in this
example.
2. Press ƒ and select
4:Rotate & Dilate
3. Point to the object and drag to rotate
and dilate the object.
To rotate and dilate an object about a
defined point:
1. Create a triangle and a point as
shown in this example.
2. Press ƒ and select
4:Rotate & Dilate
3. Select the point of rotation and
dilation. The point will blink on and
off.
4. Point to the object and drag to rotate
and dilate the object with respect to
the point.
menu rotates and dilates a
Pointer
.
Drag the object in a circular
or linear path.
Complete the rotation and
dilation.
.
Drag object in a circular or
linear path.
Complete the rotation and
dilation.
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