Texas Instruments TI-NSPIRE Software Manual page 153

3. To measure the distance between two points, between a point and a
line, or between a point and a circle:
a) Select the first point.
b) Select the second point or a point on the line or circle.
The selected length blinks.
c) Click or press
4. To measure the length of one side of a triangle, rectangle, or
polygon:
a) Select each endpoint of the segment.
b) Click or press
Note: The value that displays when you initially approach the
object (before selecting the endpoints of the side) is the
perimeter of the object, not the length of the one side.
The measurement remains visible and close to the measured objects even
if you move one or both of the objects or measurement points. If you
move an object or point, the measurement updates to reflect the new
distance.
Using Graphs & Geometry
to anchor the value on the work area.
Enter
to anchor the value on the work area.
Enter
In this example,
length is measured
from the center of the
circle to the upper left
vertex of the polygon.
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