Texas Instruments TINSPIRE Teacher Software Guidebook - Page 529

2. Click once on the work area and move to the next point. The first click represents one side of the angle. As you move to the next point, a dotted line shows the path used for angle measurement. 3. Click a second time on the work area. The second click represents the vertex. As you move to the next point, Graphs & Geometry calculates the measurement of the angle and displays it on the work area. If you are defining an angle with a specific measurement, you can change the path to adjust the angle size. 4. Click a third time on the work area, or press ·. The third click represents the second side of the angle and anchors the three points. The measurement remains visible and close to the angle even if you change the size of the angle. If you alter the angle, the measurement updates to reflect the new value. Notes: - The value of any angle will always be between 0- and 180- in degree mode or between 0- and p in radian mode. - The default angle measure is in radians for measurements within Graphing View or an Analytic Window, and in degrees for measurements within Plane Geometry View. To change it, change the document settings. Repositioning a measured value 1. From the Actions menu, select Pointer. 2. Select and drag the measurement to the desired location. Finding the slope of a line, ray, segment, or vector 1. From the Measurement menu, select Slope. 2. On the work area, press · to select the object. 3. Press · to anchor the value on the work area. Graphs & Geometry 517