Creating Triangles - Texas Instruments TI-89 User Manual

Creating Triangles

Creating a Triangle
Note: You can limit the
slope of its sides to
15-degree increments by
pressing ¤ while
constructing the triangle.
Note: An outline of the third
side is displayed as you
move the cursor.
TI-89 / TI-92 Plus / Voyage™ 200 PLT Cabri Geometry App
The
Curves and Polygons
creating and constructing triangles.
The Triangle tool creates a triangle defined by three points (vertices).
¦
Modifying: You can modify a triangle by dragging one of its
vertices.
¦
Moving: You can move a triangle as an object by grabbing it
away from the vertices and moving it to a new location.
¦
Moving a point: You can move a point placed on a triangle along
the entire perimeter of the triangle.
1. Press ... and select
3:Triangle
2. Move the (#) cursor to the desired
location and press ¸ to create
the initial vertex.
3. Move the pointer from the initial
vertex and then press ¸ to create
the second vertex.
4. Move the pointer to the location for
the final vertex.
5. Press ¸ to create the final vertex
to complete the triangle.
toolbar menu contains tools for
.
Create the first vertex.
Create the second vertex.
Locate the final vertex.
Create the triangle.
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