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Parallelogram, definition and...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet showing the definition and properties of a parallelogram.
The applet shows a parallelogram, any vertex of which the user can drag. The other points then ...
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"Picking" Your Way through Are...

Polygons (Geometry) 
TINspire 
Activity 

[0]

In this activity, students will discover Pick’s Theorem by ﬁnding the relationship between area and the number of boundary points and interior points of a lattice polygon.
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An Introduction to Quadrilater...

Quadrilaterals (Geometry) 
Java Applet 
Lesson Plan 

[0]

An introduction to quadrilaterals.
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Apothem of a Regular Polygon ...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the apothem of a regular polygon. The applet shows a
regular polygon where the user can alter the number of sides and resize it by ...
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Area and perimeter of a rectan...

Rectangle (Geometry) 
Flash 
Activity 

[0]

An interactive applet and associated web page showing how to find the area and perimeter of a rectangle
from the coordinates of its vertices. The rectangle can be either parallel to the axes o...
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Area and perimeter of a square...

Square (Geometry) 
Flash 
Activity 

[0]

An interactive applet and associated web page showing how to find the area and perimeter of a square
from the coordinates of its vertices. The square can be either parallel to the axes or rota...
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Area and perimeter of a trapez...

Trapezoid (Geometry) 
Flash 
Activity 

[2]

An interactive applet and associated web page showing how to find the area and perimeter of a trapezoid
from the coordinates of its vertices. The trapezoid can be either parallel to the axes o...
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Area of a Square  Math Open ...

Square (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the area of a square.
The applet shows a square with all vertices draggable. As you drag any one, the area id continuously calculat...
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Area of a Kite  Math Open Ref...

Kite (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that deals with the area of a kite, (a quadrilateral with two distinct pairs of equal adjacent sides).
The applet shows a kite and the user can reshap...
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Area of a Parallelogram  Math...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet showing the ways to calculate the area of a parallelogram. The user can drag the vertices of the parallelogram and the other points change automatically to ensure ...
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Area of a Rectangle

Rectangle (Geometry) 
Flash 
Tool 

[0]

Flashbased introduction to finding the area of a rectangle, given length, width, and units of measurement. College Cram charges access fees by the month or by the semester for most resources. To ...
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Area of a Rectangle  Math Ope...

Rectangle (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet showing the ways to calculate the area of a rectangle. The user can drag the vertices of the rectangle and the other points change automatically to ensure it rem...
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Area of a Regular Polygon  Ma...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the area of a regular polygon.
The applet presents a regular polygon where the user can drag any vertex to resize it, and change the ...
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Area of a Rhombus  Math Open ...

Rhombus (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet showing the ways to calculate the area of a rhombus.The user can drag the vertices of the rhombus and the other points change automatically to ensure it remains a ...
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Area of a Trapezoid  Math Ope...

Trapezoid (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet showing the ways to calculate the area of a trapezoid. The user can drag the vertices of the trapezoid and the other points change automatically to ensure it remai...
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Center of a Regular Polygon  ...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that the definition of the center of a regular polygon.
The applet presents a regular polygon, where the user can drag any vertex to resize it, an...
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Central Angle of a Polygon  M...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that define and illustrate the central angle of a polygon.
The applet shows the angle and users can experiment by changing the number of sides and res...
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Circumcircle of a Polygon  Ma...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that show the properties of a circumcircle of a polygon.
The applet shows a regular polygon where the user can drag the vertices to reshape i...
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Classification of Quadrilatera...

Polygons (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive Java illustration that highlights specific properties of various quadrilaterals. Quadrilaterals may be convex, orthodiagonal, cyclic, inscriptible, having parallel or equal sides, equil...
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Classifying Polygons (Geometry...

Polygons (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains classifying polygons, drawing on earlier lessons about polygons.
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Classifying Quadrilaterals Vis...

Quadrilaterals (Geometry)+ 
Java Applet 
Tool 

[0]

In this activity, you will visually explore the relationship between several different quadrilaterals and eventually classify them in the form of a 'family tree'. After an introduction to a square and...
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Combinations

Polygons (Geometry) 
TINspire 
Activity 

[0]

This activity introduces students to combinations. They derive the formula for the number of combinations of n objects taken r at a time by starting with a list of permutations and eliminating those t...
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Concave Polygons  Math Open R...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the concept of a concave polygon 
one where at least one interior angle is greater than 180°. The applet shows an irregular po...
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Congruent Polygons  Math Open...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the congruence of polygons.
The applet presents nine polygons that are in fact congruent, but don't look it because they are reflec...
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Congruent Transformation

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

This applet follows descriptions on how to transform any quadrilateral into a parallelogram, rectangle, or triangle based on transformations of the pieces of the quadrilateral.
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