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Topic (Course) 
Technology 
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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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Definition and properties of a...

Trapezoid (Geometry) 
Flash 
Activity 

[0]

An interactive applet and associated web page that show the definition and properties of a trapezoid in coordinate geometry.
The applet has a trapezoid with draggable vertices. As the user res...
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Quadrilaterals

Trapezoid (Geometry) 
Sketchpad 
Activity 

[0]

Investigate the parallelogram, rectangle, square, rhombus, and isosceles trapezoid. Includes an activity in PDF format and a prepared sketch.
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Geometry, Section 2

Trapezoid (Geometry) 
Computer 
Support Material 

[0]

A collection of illustrated concepts including problems for students to work out, and standalone word problems. Includes automated feedback. Pre and posttests, answer sheets, additional help, tools,...
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The Trapezoid

Trapezoid (Geometry) 
Computer 
Support Material 

[1]

Provides the defining properties of a trapezoid.
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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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Classification of Quadrilatera...

Trapezoid (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 Quadrilaterals Vis...

Trapezoid (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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Dynamic Geometry Exploration: ...

Trapezoid (Geometry) 
Java Applet 
Tool 

[2]

Two interactive trapezoids for students to use to make conjectures about midsegments. The second one allows the user to collapse the trapezoid to a triangle and make a conjecture about the relationsh...
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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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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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Tetragon, definition and prope...

Trapezoid (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a tetragon (4 sided polygon, aka quadrilateral).
The applet shows a tetragon where the user can drag any vertex to reshape...
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Trapezoid, definition and pro...

Trapezoid (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet showing the definition and properties of a trapezoid.
The applet shows a trapezoid where the user can drag any vertex. The other points then move in such...
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Quadrilaterals

Trapezoid (Geometry) 
JavaScript 
Tool 

[0]

The user reviews quadrilaterals and the special quadrilaterals commonly used in geometry. After viewing examples, users can interactively test their understanding of the different properties of quadr...
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Quadrilaterals

Trapezoid (Geometry) 
Sketchpad 
Tool 

[0]

Investigate the parallelogram, rectangle, square, rhombus, and isosceles trapezoid. Includes an activity in PDF format and a prepared sketch.
More: lessons, discussions, ratings, reviews,...

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