Casio ClassPad 101 User's Guide download pdf (Page 155)

Chapter 8: Geometry Application 155

Inserting Text Strings into the Screen

You can insert text strings into the screen while working on the Geometry application window. To do so, tap

[Text] on the [Draw] menu. On the dialog box that appears, input the text you want, and then tap [OK].

Attaching an Angle Measurement to a Figure

The measurement of an angle formed by two sides of a figure can be attached to the figure as shown here. To

do so, tap [Attached Angle] on the [Draw] menu.

u To attach an angle measurement to a figure

Example: To attach the measurement of angle A in triangle

ABC

1. Draw the triangle.

2. Tap G. Next, tap side AB and then side AC to select them.

3. Tap [Draw] and then [Attached Angle].

• This attaches the angle measurement to the figure.

Tip: The two sides of the figure actually form four angles in the illustration shown here.

After attaching an angle measurement using the [Attached Angle] command, you

can drag it to the position of any one of the other three angles as shown in the

example below.

Example: To drag the angle measurement attached to interior angle A of

triangle ABC to its exterior supplementary angle

Displaying the Measurements of a Figure

You can display measurements on the Geometry application window. The measurements change dynamically

as you manipulate the figure.

u To display a measurement of a figure

1. What you should select (point, line, figure, etc.) depends on the type of measurement you want to display.

To display this type of measurement: Select this:

Angle between two lines Two lines (Any two of the following: line segment,

infinite line, ray, or vector, one side of a polygon)

Supplementary angle of extended lines

Area of selected figure

• All the sides or all the apexes of a polygon

• The circumference of a circle, ellipse, or arc

• Three points

Circumference or perimeter of selected figure

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Casio ClassPad 101 User's Guide Page 155