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Resource Name 
Topic (Course) 
Technology 
Type 
$? 
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Measuring Circles (Geometry)

Circles (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains more about measuring circles, including segment lengths and angle measures, as well as using the relationship of circumference to diameter.
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Perimeter and Circumference (G...

Circumference (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains how to find the pperimeter and circumference of geometric shapes.
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Real World Applications  Area...

Circles (Geometry) 
Flash 
Support Material 

[0]

This minilesson will help you apply your knowledge of area, perimeter, and volume to realworld problems.
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Hypotrochoid

Circles (Geometry) 
Java Applet 
Support Material 

[0]

This Math Images page catalogs the hypotrochoid, along with a basic description, mathematical explanations, related links, and references.
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Circles: Definitions and Formu...

Circles (Geometry) 
JavaScript 
Support Material 

[0]

The user reviews circles, terms related to circles, and formulas and equations associated with circles.
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Calculation of Pi from Explori...

Circles (Geometry) 
Computer 
Tool 

[0]

From the Arthur Engel book "Exploring Mathematics With Your Computer," this is the calculation of the first 500 terms of pi.
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Computing Pi

Pi (Geometry) 
Computer 
Tool 

[1]

The Greek mathematician Archimedes approximated pi by inscribing and circumscribing polygons about a circle and calculating their perimeters. Similarly, the value of pi can be approximated by calculat...
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Area of a Circle

Circles (Geometry) 
Flash 
Tool 

[0]

Flashbased introduction to finding the area of a circle, given the radius. College Cram charges access fees by the month or by the semester for most resources. To get a preview of their tools, se...
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Circle Geometry Whiteboard Min...

Radius (Geometry)+ 
Flash 
Tool 

[0]

Teach your geometry students advanced circle concepts with this set of interactive whiteboard minimovies. Animated flash cards bring the concepts to life while the interactive circle allows you to cr...
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Circumference of a Circle

Circumference (Geometry) 
Flash 
Tool 

[0]

Flashbased introduction to finding the circumference of a circle, given the radius. College Cram charges access fees by the month or by the semester for most resources. To get a preview of their ...
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Constructing a hexagon inscrib...

Circles (Geometry) 
Flash 
Tool 

[0]

An interactive applet and associated web page that provide stepbystep instructions on how to construct
a hexagon inscribed in a circle using only a compass and straightedge.
The method begin...
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Constructing a pentagon inscri...

Circles (Geometry) 
Flash 
Tool 

[0]

An interactive applet and associated web page that provide stepbystep instructions on how to construct
a pentagon inscribed in a circle using only a compass and straightedge.
The method begins...
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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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Interactive Circle

Circles (Geometry)+ 
Flash 
Tool 

[1]

Use the interactive circle to create the following circle parts:
Radius
Diameter
Tangent
Chord
Sector
Inscribed Angles
Central Angle
Segment
Ar...
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Radians

Angles (Geometry) 
Flash 
Tool 

[2]

Flashbased introduction to converting between degrees and radians. College Cram charges access fees by the month or by the semester for most resources. To get a preview of their tools, see their ...
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Adjacent Arcs  Math Open Refe...

Arcs (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the concept of adjacent arcs.
The user can 3 drag points around a circle that define the endpoints of two adjacent arcs. Web page ha...
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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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Arc  Math Open Reference

Arcs (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the concept of an arc. The applet shows a circle with part of it highlighted to
identify the arc. Each endpoint of the arc can be d...
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Arc Central Angle  Math Open ...

Arcs (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the the concept of the central angle subtended by an arc.
The applet shows an arc and the corresponding central angle. As the arc en...
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Arc Length  Math Open Referen...

Arcs (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the concept of arc length.
The applet shows a circle with part of it's circumference highlighted and the central angle shown.
As...
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Area of a Circle  Math Open R...

Circles (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the area of a circle.
A circle is shown with a point on the circumference that can be dragged to resize the circle.
As the circle i...
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Area of a Segment of a Circle ...

Circles (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the area of a segment of a circle  a part of a circle cut off by a chord.
The applet shows a circle and a segment of that circle, ...
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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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Central Angle Theorem  Math O...

Arcs (Geometry)+ 
Java Applet 
Tool 

[1]

A web page and interactive applet illustrate the Central Angle Theorem (an arc subtends twice the angle at the center as at the circumference). By dragging the key points with the mouse, students ...
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Central Angle of a Circle  Ma...

Arcs (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the central angle of a circlethe angle subtended at the center by two points on the circle.
The applet presents a circ...
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