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(4) Tap [Insert] and then [Geometry Link].
• This inserts a Geometry Link row in the next line.
Geometry Link row
Symbol
(5) Tap the Geometry window to make it active.
(6) Tap one side of the triangle to select it, and then drag it to the link symbol in the
eActivity window.
• This inputs the equation of the line that represents the side of the triangle into the link.
• Modifying the equation in the Geometry Link row and pressing
corresponding change in the Geometry window (lower right screenshot).
• The example below shows how the isosceles triangle ABC (CA = BC) changes when
the equation in the Geometry Link row is changed from
• Drag the stylus across
x
1.91
+ 0.983.
Tip
• Dragging a line or figure from the Geometry window to a text row or calculation row in an eActivity
also converts the figure to its value or equation. In this case, however, data in the text row or
calculation row is not interlinked with the Geometry window figure.
• Pressing
after changing data in a Geometry Link updates the corresponding figure in the
Geometry window.
• Changing the figure in the Geometry window will cause the linked data in an eActivity to update
accordingly.
10-3-18
Inserting Data into an eActivity
• Input
• Press
20060301
causes a
y
x
= 1.91
+ 0.983 to
x
+ 2.
.
y
x
=
+ 2.
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