User Manual

Chapter 8: Geometry Application 33
0803
1. Tap [Draw], [Special Polygon], and then [Regular n-gon].
• This displays the n-gon dialog box.
2.
Enter a value indicating the number of sides of the polygon, and then tap [OK].
3. Place the stylus on the screen and drag diagonally in any direction.
• This causes a selection boundary to appear, indicating the size of the
polygon that will be drawn. The polygon is drawn when you release the
stylus.
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1. Specify “Degree” for the Geometry Format “Measure Angle” (see “1-7 Configuring Application Format
Settings” in the User’s Guide).
2. Draw triangle ABC and select sides AB and BC.
3. Tap the u button to the right of the toolbar.
• This will display the measurement box, which shows the current value of angle B.
4. Input 90 into the measurement box
and then press E.
• This locks the angle B at 90°.
5. Tap in a blank area on the screen to deselect everything and then select the AC side.
• This displays the measurement box, which shows the length of side AC.
6. Tap
.
• This causes the icon to change to
, indicating that the length of AC is locked.
7. Tap the following: [Draw] - [Construct] - [Midpoint].
• This creates midpoint D on side AC.
8. Tap the following: [Draw] - [Basic Object] - [Circle].
• This deselects side AC and enters the circle drawing mode.
9. Tap point D and then point B.
• With point D as the center point, draw a circle that circumscribes triangle
ABC.
10. Tap [View] and then [Select].
• This exits the circle drawing mode and enables selection.
11. Select side AB and side AC, and then tap the following: [Draw] - [Slider] -
[Angle].
• This displays a slider.
12. On the menu that appears when you tap the upper left corner of the slider
display box, tap [Settings].