User manual TEXAS INSTRUMENTS TI-92 PLUS-VOYAGE 200 CABRI GEOMETRY GUIDEBOOK

[. . . ] ti TI-89 / TI-92 Plus / VoyageTM 200 Cabri Geometry Important Information Where to Find Installation Instructions How to contact Support and Service End-User License Agreement Cabri Geometry Application User Guide Copyright © 1999­2002 Texas Instruments Incorporated Important Information Texas Instruments makes no warranty, either expressed or implied, including but not limited to any implied warranties of merchantability and fitness for a particular purpose, regarding any programs or book materials and makes such materials available solely on an "as-is" basis. In no event shall Texas Instruments be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the purchase or use of these materials, and the sole and exclusive liability of Texas Instruments, regardless of the form of action, shall not exceed the purchase price of this product. Moreover, Texas Instruments shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party. See the terms of the license agreement. Where to Find Installation Instructions You can find detailed instructions on installing Flash applications at education. ti. com/guides. Texas Instruments (TI) Support and Service Information For General Information E-mail: Phone: Home Page: ti-cares@ti. com 1-800-TI-CARES (1-800-842-2737) For U. S. , Canada, Mexico, Puerto Rico, and Virgin Islands only education. ti. com For Technical Questions Phone: 1-972-917-8324 For Product (hardware) Service Customers in the U. S. , Canada, Mexico, Puerto Rico and Virgin Islands: Always contact Texas Instruments Customer Support before returning a product for service. [. . . ] Move the cursor to a side or object through which you want the perpendicular line to pass then press ¸. Select a linear object. Note: The order of steps 3 and 4 can be reversed. 4. Move the cursor to the point through which you want the perpendicular line to pass then press ¸. Select a point. A dependent perpendicular line is drawn. Note: You can move the perpendicular line by dragging the point through which the line passes or by changing the orientation of the object to which it is perpendicular. 5. Drag one of the vertices of the triangle to change its orientation. Change the orientation. TI-89 / TI-92 Plus / VoyageTM 200 PLT Cabri Geometry App 29 Constructing Perpendicular and Parallel Lines (continued) Constructing a Parallel Line The Parallel Line tool creates a line that passes through a point and is parallel to a selected linear object (line, segment, ray, vector, side of a polygon, or axis). Create any object having linear properties such as the triangle shown in this example. Move the pointer to the line, segment, ray, vector, or side of a polygon that will be parallel to the constructed line and press ¸. Select a linear object. Note: The order of steps 3 and 4 can be reversed. 4. Move the pointer to a point through which the parallel line will pass and press ¸. Select a point. A dependent parallel line is drawn. Note: You can move the parallel line by dragging the point through which the line passes or by changing the orientation of the object to which it is parallel. 5. Drag one of the vertices of the triangle to change its orientation. Change the orientation. TI-89 / TI-92 Plus / VoyageTM 200 PLT Cabri Geometry App 30 Constructing Perpendicular and Angle Bisectors The Construction toolbar menu contains tools for constructing objects in relation to other objects, such as perpendicular and angle bisectors. Constructing a Perpendicular Bisector The Perpendicular Bisector tool creates a line that is perpendicular to a segment, a vector, a side of a polygon, or between two points, and passes through the midpoint of the object. You can move the perpendicular bisector by moving one of the endpoints that define the bisected line segment. A perpendicular bisector cannot be translated directly unless it is constructed between two basic points. Move the pointer to one of the following and press ¸. Note: For two points, select and press ¸ for each point. A segment or a vector. Two points. perpendicular bisectors Constructing an Angle Bisector The Angle Bisector tool creates a line that bisects an angle identified by three selected or created points. The second point defines the vertex of the angle through which the line passes. Press and select 5:Angle Bisector. Tip: You can change the angle bisector by dragging any of the three points that define the angle. 3. (The second point that you select is the vertex of the angle. ) The angle bisector is created when you select the third vertex. Select points A, B, and C. angle bisector TI-89 / TI-92 Plus / VoyageTM 200 PLT Cabri Geometry App 31 Creating Midpoints The Construction toolbar menu contains a tool for constructing the midpoint of a segment. Creating a Midpoint The Midpoint tool creates a point at the midpoint of a segment, a vector, the side of a polygon, or between two points. Move the pointer to one of the following and press ¸. Note: For two points, select and press ¸ for each point. A segment. The side of a polygon. Two points (create or select). midpoints TI-89 / TI-92 Plus / VoyageTM 200 PLT Cabri Geometry App 32 Transferring Measurements The Construction toolbar menu contains a tool for transferring measurements between objects. About Transferring Measurements The Measurement Transfer tool creates: ¦ ¦ ¦ A point on a ray or vector from the initial point of a line, segment, polygon, or axis. A point on a circle that is at an equivalent arc length from another point on the circle. The point created by the measurement transfer is dynamically updated. The magnitude of the measurement that is transferred defaults to the specified unit of length. Note: See "Measuring Distance and Length of an Object" on page 46 and "Creating and Editing Numerical Values" on page 61 to create the numerical values shown in the examples in this section. Creating a Measurement Transfer Point on a Ray Perform the following steps to transfer the measurement of a segment to a ray. Construct and measure a segment, and construct a ray as shown in this example. Point to any measurement or numerical value, and press ¸ to select the value. Select a numerical value. Note: If you select a point, a dotted line appears. Position the dotted line as you want it, and then press ¸ to set the position. 4. Select a ray, vector, polygon, point, or axis; and press ¸ to transfer the measurement to the object. [. . . ] The pointers are shown and described below. Cursor Display/Name Active when. . . 7 arrow + cross hair # construction pencil ' selection pencil TI-89: j TI-92 Plus / VoyageTM 200 PLT: % The pointer is on an object. A selected object can be moved. ( open hand On the TI-92 Plus, press 2 and the cursor pad (C, E, B, F, D, G, A, H) at the same time to scroll the display anywhere within the plane. On the TI-89 / VoyageTM 200 PLT, press any two adjacent cursor keys to move diagonally. Thick or dotted lines are selected. I I-beam 4 crossed lines 2 paint brush Glossary of Geometry Definitions The following terms are used in this chapter to describe specific Cabri Geometry II operations. [. . . ]