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Topic (Course) 
Technology 
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Identify These Quadrilaterals

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[2]

This applet asks you to determine the types of quadrilaterals illustrated.
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Incircle of a Polygon  Math O...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the incircle of a polygon
 The largest circle the will fit inside a polygon that touches every side. The applet shows a polygon wh...
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Interior / Exterior Angles of ...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the relationship of the interior and exterior angles of a polygon.
The applet shows an irregular polygon where one vertex is draggabl...
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Interior Angles of a Polygon ...

Polygons (Geometry) 
Java Applet 
Tool 

[1]

An interactive applet and associated web page that demonstrate that the interior angles of a polygon always add to
a number related only to the number of sides.
The applet shows a polygo...
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Irregular Polygons  Math Open...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that show the behavior of irregular polygons.
The applet shows initially an irregular convex polygon.
All vertices are draggable and when dragged sh...
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Maximizing the Area of a Recta...

Square (Geometry)+ 
Java Applet 
Tool 

[0]

Students explore and discover the relationship between length of a side of a rectangle and the rectangle's area. They will try to determine what length maximizes the area.
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Median of a Trapezoid  Math O...

Trapezoid (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the median line of
a trapezoid (line linking midpoints of nonparallel sides).
The applet shows a trapezoid with all vertices drag...
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Nonagon  Math Open Reference

Polygons (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a nonagon (9 sided polygon).
The applet shows a nonagon where the user can drag any vertex to reshape it.
User can see th...
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Octagon, definition and proper...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a octagon (8 sided polygon).
The applet shows an octagon where the user can drag any vertex to reshape it.
User can see t...
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Parallelograms

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

The definition, conditions, and properties of a parallelogram are illustrated and demonstrated by corresponding applets.
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Pentagon, definition and prope...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a pentagon (5 sided polygon).
The applet shows a pentagon where the user can drag any vertex to reshape it.
User can see ...
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Pentominoes

Other polygons (Geometry) 
Java Applet 
Tool 

[0]

A virtual manipulative of pentominoes which can be rotated and also reflected (flipped).
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Perimeter of a kite  Math Ope...

Kite (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet show how to compute the perimeter of a kite.
A kite is shown that can be resized by dragging its vertices. As you drag, the perimeter is continuously recalcula...
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Perimeter of a parallelogram ...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet show how to compute the perimeter of a parallelogram.
A parallelogram is shown that can be resized by dragging its vertices. As you drag, the perimeter is cont...
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Perimeter of a polygon  Math ...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet show how to compute the perimeter of a polygon.
A polygon is shown that can be resized by dragging its vertices. As you drag, the perimeter is continuously rec...
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Perimeter of a rectangle  Ma...

Rectangle (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet show how to compute the perimeter of a rectangle.
A rectangle is shown that can be resized by dragging its vertices. As you drag, the perimeter is continuously...
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Perimeter of a rhombus  Math...

Rhombus (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet show how to compute the perimeter of a rhombus.
A rhombus is shown that can be resized by dragging its vertices. As you drag, the perimeter is continuously rec...
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Perimeter of a square  Math O...

Square (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet show how to compute the perimeter of a square.
A square is shown that can be resized by dragging its vertices. As you drag, the perimeter is continuously recal...
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Perimeter of a trapezoid  Mat...

Trapezoid (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet show how to compute the perimeter of a trapezoid.
A trapezoid is shown that can be resized by dragging its vertices. As you drag, the perimeter is continuously...
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Polygon Creator

Polygons (Geometry) 
Java Applet 
Tool 

[1]

With this applet you can create polygons. The trick is to figure out the properties of polygons (the sum of the interior angles) so that you can instruct the program to produce legitimate polygons. ...
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Polygon definition  Math Open...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate polygons. The applet
shows a polygon which is initially an irregular convex pentagon. The user can drag any vertex and a message sh...
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Polyominoes

Other polygons (Geometry) 
Java Applet 
Tool 

[0]

Using this virtual manipulative you may: add a polyomino to the workspace; group polyominoes; rotate a polyomino; change a polyomino's color; zoom in/out; clear the workspace
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Problem about a Parallelogram

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

This applet illustrates what types of quadrilaterals are formed by the angle bisectors of a parallelogram.
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Problem about a Quadrilateral

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

This applet illustrates what types of inscribed quadrilaterals are created by connecting the midpoints of a quadrilateral.
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Quadrilaterals  Math Open Ref...

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page showing the properties of a quadrilateral. The applet shows a quadrilateral with draggable vertices.
The web page has an extensive list of the variou...
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