Texas Instruments TI-89 User Manual page 38

Transferring Measurements
Creating a
Measurement
Transfer Point on a
Circle
Note: The direction of the
distance or arc length is
counterclockwise for positive
values and clockwise for
negative values. The
direction is determined by
the sign of the selected
numerical value.
TI-89 / TI-92 Plus / Voyage™ 200 PLT Cabri Geometry App
(continued)
Perform the following steps to create a point on a circle at a
proportional arc length away from a selected point.
1. Create a circle with a point on it,
then create a numerical value as
shown in this example.
2. Press † and select
9:Measurement
.
Transfer
3. Move the cursor and press ¸ to
select the numerical value.
4. Move the cursor and press ¸ to
select the circle
5. Move the cursor to the existing point
on the circle.
6. Press ¸ to create a point on the
circle that is a proportional arc
length away from the initial point.
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