1. Chapter 9-4
Arcs and Chords

2. Congruent chords theorem
In the same circle or in congruent circles:
1. Congruent arcs have congruent chords
2. Congruent chords have congruent arcs

3. Congruent chords theorem cont.

4. Diameter
A diameter that is perpendicular to a chord bisects the chord and its arc

5. Arc/chord Bisector

6. In the same triangle or congruent triangles:
1. Chords equally distant from the center (or centers) are congruent.
2. Congruent chords are equally distant from the center (or centers).

7. Congruent arcs