Editing Figures
Icon Icon Name
FRotationangle
Scale of
2dilation
Transform
}matrix
This icon appears when this | Tapping this icon | Lockable | |
is selected: | displays: | ||
| |||
Two points created by | Angle of rotation | Yes | |
[Rotation] |
| ||
|
| ||
Two points (like Point A and | Scale of dilation | Yes | |
Point A’) on a figure created by |
| ||
[Dilation] |
|
| |
Two points (like Point A and | Transform matrix |
| |
Point A’) on a figure created by |
|
| |
[Rotation], [Dilation], |
| No | |
[Reflection], [Translation], or |
|
| |
[General Transform] |
|
|
Tip
•The “Direction” and “Rotation angle” items always display information in degrees, regardless of the currently selected angle unit setting.
You can use the measurement box to determine certain measurements.
In the first example below, three points are selected on the screen and the measurement box shows the area of the triangle formed by them.
The second example shows how to view the measurements of a line segment.
u To display the area of a triangular area
You can use the measurement box to display the area of a triangle formed by any three points you select on the display.
Example: To use the parallelogram ABCD, in which sides AD and BC are parallel, to determine the areas of the triangles formed by side AD and point B, and side AD and point C
(1)Draw the parallelogram.
•If you need to, select [Edit] and then [Clear All] before beginning this example.
(2)Tap uon the toolbar to display the measurement box.
(3)Select points A, D, and B.
•This causes the area of the triangle ADB to appear in the measurement box.
20021201