Using Applications on the TI83/84

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Home	Conics	Geomaster	Transformations

The GeoMaster application allows you to draw and transform objects and to work
with them interactively. You can graph equations from the Y=editor and stat plots
on the same screen with objects you draw using GeoMaster tools.
These are some of the things you can do with this application.
- Draw points, lines, segments, circles, and polygons.
- Translate, reflect, rotate, and dilate objects.
- Measure lengths, areas, perimeters, angles, and determine slope.
- Display equations of circles and lines and coordinates of points.
- Store measured values in the lists for plotting and analysis.

Press

and scroll down to
GeoMaster.
You can also press

and then

, which is the letter G.

Drawing Objects - Use this menu to draw points, lines, segments, rays, vectors, midpoints, etc.

Select DRAW on the menu.
There are 18 choices.

Draw a triangle.
Press 5 to select triangle.
You can use any Window.
Move the cursor to each
corner of the triangle
you wish to draw and
press enter.

Calculating and Displaying Measurements - Use this menu to find information about objects you have drawn. You can find the following types of measurements.
- Slope of a line
- Measurement of an angle
- Equation of a line
- Coordinates of a point
- Distance between two points
- Length of a vector
- Length of a line segment

Select MEAS on the menu. There are 7 choices.
Draw a figure and press to access the menu.
Select Area from the menu and press ENTER. The area is calculated and shown on the screen.
Select Slope from the menu. Move the cursor to one of the line segments and press ENTER. The slope is shown.

Transforming Objects - Use this menu to translate, reflect, rotate, dilate, or create a
symmetric object.

Select TRFM on the menu. To access this menu, press . Press to exit any running menu item.
Draw a figure and then draw a line to rotate it around. Here we have drawn a circle and then a line.
Select Reflection from the TRFM menu.
Select the object to be reflected, and then the line.

Select DRAW on the menu. There are 18 choices.
Draw a triangle. Press 5 to select triangle. You can use any Window. Move the cursor to each corner of the triangle you wish to draw and press enter.