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The circleIn geometry, the circle is the locus of points at the same distance from a given point. An easier way to define such geometric figure is to say that it is a closed curved line with all points equally distant from the center. The following shows an example:  Real life examples bicycle wheels, coins, such as dimes and pennies, CDs, and MP3 players. A line segment joining two points on the figure is a chord.The following are examples of two chords  When a chord passes through the center,we call it a diameter. A diameter usually divides such figure into two equal halves. Each half is called a semi-circle  Half a diameter is called a radius. In other words, 2 radii= diameter 
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IntroductionArithmeticGeometryGraph it!Probability and statisticsReal life mathSequences and patternsAlgebraResourcesTeachers!
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| Homepage|The circle|
| The number pi
| circumference of a circle
| Area of a circle|
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