24+Chord+Theorems

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This page will explain chord theorems. There are three rules for these. The diameters of a given circle all intersect at the center. Therefore, the center of a circle can be found by constructing two diameters. There are three rules/theorems for chord theorems that will be stated below.======

1. In a circle, if a diameter is perpendicular to a chord, then it bisects the chord and its arc. A chord that is the perpendicular bisector of another chord is a diameter.

2. In a circle or congruent circles, two minor arcs are congruent if and only if their corresponding chords are congruent.

3. In a circle or in congruent circles, two chords are congruent if and only if they are equidistant from the center.

A.B=C.D __**WEBSITES**__

http://www.sparknotes.com/math/geometry2/theorems/section5.rhtml

http://regentsprep.org/Regents/math/geometry/GP14/CircleChords.htm

http://library.thinkquest.org/20991/geo/circles.html