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Topic (Course) 
Technology 
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Why AAA does not prove congrue...

Congruence (Geometry) 
Flash 
Activity 

[1]

An interactive applet and associated web page that shows that angleangleangle (AAA) is not enough
to prove congruence.
The applet shows two triangles, one of which can be dragged to resize it...
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Why SSA does NOT prove congrue...

Congruence (Geometry) 
Flash 
Activity 

[1]

An interactive applet and associated web page that shows that sidesideangle is not enough
to prove congruence, because two triangles can meet the condition.
The applet shows two triangles, on...
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Geometry, Section 1

Congruence (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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Congruence Theorems

Congruence (Geometry) 
Java Applet 
Tool 

[1]

In this investigation, the user can explore the conditions that guarantee uniqueness of a triangle, quadrilateral, or pentagon regardless of location or orientation. Each set of conditions results in ...
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Congruent Angles  Math Open R...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the concept of congruent angles. Three angles are shown which always
remain congruent as you drag any defining point on any angle. ...
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Congruent Lines  Math Open Re...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate congruent line segments (segments that are the same length).
The applet shows three line segments that are the same length. They al...
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Congruent Polygons  Math Open...

Congruence (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 Right Triangles  HL...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that shows how right triangles that have
the hypotenuse and one other leg the same length must be congruent.
The applet shows two right triangles, ...
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Congruent Triangles

Congruence (Geometry) 
Java Applet 
Tool 

[1]

This page provides three applets that you manipulate in order to discover rotation, translation, and reflection. Then below are descriptions of sideangleside, anglesideangle, and sidesideside (...
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Congruent Triangles

Congruence (Geometry) 
Java Applet 
Tool 

[0]

Investigate the different side and angle arrangements (SSS or ASA) that cause two triangles to be always congruent or noncongruent.
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Congruent Triangles

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the concept of congruent triangles.
Applets show that triangles are congruent if they are the same, rotated, or reflected.
In ea...
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Congruent Triangles (1)

Congruence (Geometry) 
Java Applet 
Tool 

[1]

An applet is provided that helps you visualize the proofs to the problems given that deal with congruent triangles.
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Congruent Triangles (2)

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An applet is provided that helps you visualize the proof to the problem given that deals with congruent triangles.
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Congruent Triangles (3)

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An applet is provided that helps you visualize the proofs to the problems given that deal with congruent triangles.
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Congruent Triangles (4)

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An applet is provided that helps you visualize the solution to the problem given that deals with congruent triangles.
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Congruent Triangles  ASA  Ma...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that shows how triangles that have
two angles and their included side the same must be congruent.
The applet shows two triangles, one of which can...
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Congruent Triangles  SAS Mat...

Congruence (Geometry) 
Java Applet 
Tool 

[1]

An interactive applet and associated web page that shows how triangles that have
two sides and their included angle the same must be congruent.
The applet shows two triangles, one of which can...
More: lessons, discussions, ratings, reviews,...

Congruent Triangles AAS  Math...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that show how triangles that have
two angles and a nonincluded side the same must be congruent.
The applet shows two triangles, one of which can be...
More: lessons, discussions, ratings, reviews,...

Congruent Triangles SSS  Math...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that show how triangles that have all 3 sides the same length must be congruent.
The applet shows two triangles, one of which can be reshaped by dragg...
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Euclid's Elements, Book I, Pro...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition deals with the congruence of two triangles if they two sides equal that contain one equal angle respectively then all other angles and sides of the two triangles are equal and the...
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Euclid's Elements, Book I, Pro...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows that it is impossible for two different triangles to exist that have equal sides and share the same base (SideSideSide Congruence, SSS). The guide then examines the struc...
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Euclid's Elements, Book I, Pro...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows that when corresponding sides of two triangles are equal then their respective corresponding angles are also equal. The guide then examines the structure of the proposition...
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Euclid's Elements, Book I, Pro...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states that when two triangles have angleside angle or angleangleside (in that order) equality then the triangles are congruent. The guide then examines the structure of the ...
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Two Regular Triangles

Congruence (Geometry) 
Java Applet 
Tool 

[1]

This applet corresponds to a problem dealing with triangle congruence within 2 overlapping regular triangles.
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Two Squares  Finding Angles a...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

This threepart problem deals with angles, triangles, and congruence within areas created by overlapping squares. It has a corresponding applet that helps you to visualize the solutions.
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