Casio Geometry Icon, Lockable, Icon Name, displays:, This icon appears, Highlighting this icon, when this is selected:

5-2

Using the Measurement Box

The following table describes the information that appears when you highlight each icon, and explains when each icon is available for selection.

Icon	Icon Name	This icon appears	Highlighting this icon	Lockable
		when this is selected:	displays:
5	Coordinates	A single point	Coordinates of the point	Yes
		Two points on one object	Distance between two
	Distance/	or two different objects,
=			points, length of a line	Yes
	length	or a single line segment
		or a vector	segment or vector
>	Slope	Single line, ray, line	Slope of the line, ray,	Yes
		segment, or vector	line segment or vector
		Any single line or line	Function of the object
?	Equation	segment, ray, circle, or	(using rectangular	No
		arc	coordinates)
?	Expression	A single expression	Calculation formula	No
		(“EXPR=” object)
?	Vector	A single vector	Vector components	Yes
@	Radius	A single circle or arc	Radius of circle or arc	Yes
A	Circumference	A single circle or arc	Length of the	No*3
			circumference
A	Perimeter	A single polygon	Sum of the lengths of	No
			the sides
B	Area	Any three points, a single	Area	No*3
		circle, arc, or polygon
6	Angle*1	Two lines, line segments,	Angle and its
7	Supplementary	rays, or vectors*2 in any	supplement formed by	Yes
	Angle*1	combination	the two objects
		Two circles or arcs, line	Whether the two items
	Tangency	and circle, or a line and		Yes
			are tangent
		arc
			Whether the line
9	Congruence	Two line segments	segments are the same	Yes
			length
8	Incidence	Point and a line, arc,	Whether the point is on	Yes
		circle or a vector	the line/curve

*1

*2

*3

The angle and supplementary angle is always displayed as degrees.

When two vectors are selected, the angle that is no the angle formed mathematically by the two vectors. It merely indicates the simple angle that would be formed if the vectors were two lines.

The circle itself can be locked.

20060601