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Circle : Every   point   on   a   circle   is   equidistance   from   some fixed   point,   which   is   the   center.   A   circle   is   divided into   360   degrees.   Only   one   circle   can   pass   through three points not in a straight line. Chord: A   length   of   line   or   segment   connecting   two   points   on   a circle. Diameter: Length   of   line   (chord)   passing   through   the   center   of   a circle Radius: A   line   Segment   connecting   the   center   of   a   circle   to any   point   on   the   circle.   The   dimension   is   half   that   of a diameter. Tangent: A   line   which   has   only   one   point   touching   the   circle.   A tangent is always perpendicular to the radius. Arc: Is part of a circle. Pi: The   ratio   of   the   diameter   of   a   circle   to   its   cir- cumference. The symbol for Pi is .    Pi=(3.141592654) Circumference: The   distance   around   a   circle   (the   perimeter).   The   cir- cumference = diameter x Area:  x Radius 2 http://www.dvcplanners.com
CIRCLES
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