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From Karnataka Open Educational Resources
→Concept #4: Theorems and properties
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====== [[Congruent circles|Congruent circles]] ======
====== [[Congruent circles|Congruent circles]] ======
+
+====== [[Secant and tangent of a circle]] ======
==== Concept #3: Circles and Lines ====
==== Concept #3: Circles and Lines ====
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==== Concept #4: Theorems and properties ====
==== Concept #4: Theorems and properties ====
+A chord is a straight line joining 2 points on the circumference of a circle.Chords within a circle can be related in many ways.
+
+The theorems that involve chords of a circle are :
+* Perpendicular bisector of a chord passes through the center of a circle.
+* Congruent chords are equidistant from the center of a circle.
+* If two chords in a circle are congruent, then their intercepted arcs are congruent.
+* If two chords in a circle are congruent, then they determine two central angles that are congruent.
+
+====== [[Perpendicular bisector of a chord passes through the center of a circle]] ======
+
+====== [[Congruent chords are equidistant from the centre of a circle|Congruent chords are equidistant from the center of a circle]] ======
===== Activities =====
===== Activities =====
