Casio CLASSPAD330PLUS uTo display the area of a triangular area

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Editing Figures

Icon	Icon Name	This icon appears when this	Tapping this icon	Lockable
		is selected:	displays:
Q	Angle	Two line segments	Angle and its	Yes
t			supplement formed by
			the line segments
K	Tangency	Two circles or arcs, or a line	Whether two items are	Yes
		and circle	tangent
e	Congruence	Two line segments	Whether line segments	Yes
			are the same length
	Incidence	Point and a line, arc, circle or	Whether a point is on
6		a vector	the line/curve	Yes
	Point on	Point and a function, curve, or
	curve	ellipse
F	Rotation	Two points created by	Angle of rotation	*1
	angle	[Rotation]
	Scale of	Two points (like Point A and	Scale of dilation
2	dilation	Point A’) on a figure created		*1
		by [Dilation]
u	Text icon	An object that includes text or	Editable text used to	No
		an object that can be named	name the selected image

*1 The value in the measurement box is always locked while this tool is selected.

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.

uTo 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.

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