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Topic (Course) 
Technology 
Type 
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Equation of a Circle in Standa...

Circles (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains how to obtain and use the standard form of the equation of a circle, as well as how to convert between the standard and general form.
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Inscribing a Regular Polygon i...

Circles (Geometry) 
Java Applet 
Tool 

[0]

(Under development) Increase the number of sides of a regular polygon inscribed in a circle.
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CenterRadius Form

Circles (Geometry) 
Sketchpad 
Tool 

[0]

This is a downloadable Geometer's Sketchpad file that illustrates the source of the centerradius area of a circle formula. Scroll halfway down this page in order to find the link to download this fil...
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Problem of 2 Circles #1

Circles (Geometry) 
Java Applet 
Tool 

[0]

An applet is provided to help you visualize the problem involving 2 circles and at inscribed triangle.
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Problem of 2 Circles #2

Circles (Geometry) 
Java Applet 
Tool 

[0]

An applet is provided to help you visualize the problem involving 2 circles and 2 corresponding chords.
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Problem of 2 Circles #3

Circles (Geometry) 
Java Applet 
Tool 

[0]

An applet is provided to help you visualize the problem involving 2 circles and 2 corresponding chords.
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Problem of 2 Circles #4

Circles (Geometry) 
Java Applet 
Tool 

[0]

An applet is provided to help you visualize the problem involving 2 circles and a triangle on those circles.
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Euclid's Elements, Book 3, Pro...

Circles (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states that two circles that touch do not share the same center. The guide then examines the structure of the proposition. The To reset the applet, press "r" while your cursor is...
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Euclid's Elements, Book 3, Pro...

Circles (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition deals with properties that define the center of a circle. The guide then examines the structure of the proposition. The To reset the applet, press "r" while your cursor is over ...
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Euclid's Elements, Book 3, Pro...

Circles (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows that two circles can only intersect up to two times. The guide then examines the structure of the proposition. The To reset the applet, press "r" while your cursor is over...
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Euclid's Elements, Book 3, Pro...

Circles (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows that when two circles touch one another internally once, then a line connects their intersection and two centers. The guide then examines the structure of the proposition. ...
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Euclid's Elements, Book 3, Pro...

Circles (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows that when two circles touch one another externally once, then a line connects their intersection and two centers. The guide then examines the structure of the proposition. ...
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Euclid's Elements, Book 3, Pro...

Circles (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows that two circles cannot touch more than once in order to make the intersection completely external or internal (so that they do not overlap). The guide then examines the st...
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Euclid's Elements, Book I, Def...

Circles (Geometry)+ 
Java Applet 
Tool 

[0]

Gives Euclid's original definitions of a circle, center, diameter, and semicircle and then examines the definitions' validity and durability. To reset the applet, press "r" while your cursor is over ...
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Euclid's Elements, Book III, D...

Circles (Geometry) 
Java Applet 
Tool 

[0]

Provides Euclid's definition of equal circles and then inspects it. To reset the applet, press "r" while your cursor is over the diagram.
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Euclid's Elements, Book III, D...

Circles (Geometry)+ 
Java Applet 
Tool 

[0]

Provides Euclid's definition of circle and line intersection (touch) and inspects it. To reset the applet, press "r" while your cursor is over the diagram.
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Euclid's Elements, Book III, D...

Circles (Geometry) 
Java Applet 
Tool 

[0]

Provides Euclid's definition of equidistant lines within a circle to the center and inspects it. To reset the applet, press "r" while your cursor is over the diagram.
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Euclid's Elements, Book III, D...

Circles (Geometry) 
Java Applet 
Tool 

[0]

Provides Euclid's definition of a sector of a circle and inspects it. To reset the applet, press "r" while your cursor is over the diagram.
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Euclid's Elements, Book III, P...

Circles (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to find the center of a circle. The guide then examines the structure of the proposition. The To reset the applet, press "r" while your cursor is over the diagram.
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Euclid's Elements, Book III, P...

Circles (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states that two intersecting circles that cut each other do not share the same center. The guide then examines the structure of the proposition. The To reset the applet, press "...
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Equation of a Circle

Circles (Geometry) 
Flash 
Tool 

[0]

Flash introduction to finding the equation of a circle from its center and radius, and vice versa. College Cram charges access fees by the month or by the semester for most resources. This one, th...
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Circles

Circles (Geometry) 
JavaScript 
Tool 

[0]

The user reviews circles and the important terms and properties related to circles. After viewing examples, users can interactively practice matching the term with the correct part of the circle.
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Annulus, definition and proper...

Circles (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet show that an annulus is a flat (planar) ring, and can be thought of as a disk with a hole punched out of it.
Applet can be enlarged to full screen size f...
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Area of an Annulus  Math Open...

Circles (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet show how to compute the area of an annulus. Text on the page explains that the area is the overall area minus the area of the circular 'hole' in the center. For t...
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Thales Theorem  Math Open Ref...

Circles (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating Thales' Theorem
(the diameter of a circle always subtends a right angle to any point on the circumference).
The applet shows a circle wher...
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