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20050501
8-3-5
Editing Figures
The following table describes the information that appears when you tap each icon, and
explains when each icon is available for selection.
Icon Icon Name
This icon appears when this
is selected:
Tapping this icon
displays:
Lockable
Coordinates
Yes
T
A single point Coordinates of the point
Distance/
length
Yes
t
Two points on one figure or two
different figures, or a single line
segment or a vector
Distance between two
points, length of a line
segment or vector
Slope
Yes
Single line, line segment, or
vector
Slope of the line, line
segment or vector
Direction
Yes
Y
Single line, line segment, or
vector
Direction angle of the
line (angle of inclination)
Equation
Yes
O
Any single line or line segment,
vector, circle, arc, ellipse or any
other figure (parabola, etc.)
drawn by a function
Function of the figure
(using rectangular
coordinates)
Equation
edit
No
5
Single parabola or any other
figure drawn by a function
Equation of the figure in
the function editing
dialog box.
Radius
Yes
]
Single circle or arc
Radius of circle or arc
Circumference
Yes
3
Single circle or arc Length of the
circumference
Perimeter
No
Single polygon Sum of the lengths of
the sides
Area
No
E
Any three points, a single
circle, arc, ellipse, or polygon
Area
Angle
Yes
Q
t
Two line segments Angle and its
supplement formed by
the line segments
Tangency
Yes
Two circles or arcs, or a line
and circle
Whether two items are
tangent
Congruence
Yes
Two line segments Whether line segments
are the same length
Incidence
Yes
Point and a line, arc, circle or
a vector
Whether a point is on
the line/curve
Point on
curve
Point and a function, curve, or
ellipse