Changes
From Karnataka Open Educational Resources
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, 10:03, 3 December 2013
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| ===Notes for teachers=== | | ===Notes for teachers=== |
− | A chord is a straight line joining 2 points on the circumference of a circle. Chords within a circle can be related many ways. The theorems that involve chords of a circle are : | + | # A chord is a straight line joining 2 points on the circumference of a circle. |
− | Perpendicular bisector of a chord passes through the center of a circle. | + | # Chords within a circle can be related in many ways. |
− | Congruent chords are equidistant from the center of a circle. | + | # The theorems that involve chords of a circle are : |
− | If two chords in a circle are congruent, then their intercepted arcs are congruent. | + | * Perpendicular bisector of a chord passes through the center of a circle. |
− | If two chords in a circle are congruent, then they determine two central angles that are congruent. | + | * 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. |
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| ===Activity No 1[Theorem 1: Perpendicular bisector of a chord passes through the center of a circle.] === | | ===Activity No 1[Theorem 1: Perpendicular bisector of a chord passes through the center of a circle.] === |