TI-89 / TI-92 Plus / Voyage™ 200 PLT Cabri Geometry App 27
The
Polygon
tool constructs an
n
-sided polygon of any shape defined
by
n
points (vertices) where
n
is a number greater than two.
1.
Press
…
and select
4:Polygon
.
2.
Move the (
#
) cursor to the desired
location.
3.
Press
¸
to create the initial
vertex. Press the cursor pad to create
the first side.
Create the initial vertex and
the first side.
4.
Press
¸
then move the pointer to
create each of the other vertices.
5.
To complete the construction of the
polygon:
¦
Move the pointer to the initial
vertex until “
THIS POINT
” is
displayed and press
¸
.
— or —
¦
Press
¸
a second time on the
last point of a polygon.
Create additional vertices.
Select the original point.
Polygon is complete.
You can move a point placed on a polygon along the entire perimeter
of the polygon.
1.
Press
„
and select
1:Point.
2.
Move the (
#
) cursor to the perimeter
of the polygon and press
¸
.
Create a point.
3.
Press and hold
TI-89:
j
TI-92 Plus / Voyage™ 200 PLT:
‚
while pressing the cursor pad to
move the point along the perimeter
of the polygon.
Grab and move the point.
Creating Polygons
The
Curves and Polygons
toolbar menu contains tools for
creating and constructing polygons in geometry.
Creating a Polygon
Tip:
You can limit the slope
of the sides of a polygon to
15-degree increments by
pressing
¤
while
constructing the polygon.
Placing and Moving
a Point on a
Polygon
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