Arcs and Chords Flashcards
1
Q
What is Theorem 9-4?
A
In the same circle or in congruent circles:
Congruent arcs have congruent chords
Congruent chords have congruent circles
2
Q
What is a midpoint of an arc?
A
The midpoint of an arc XYZ is point Y if arc XY congruent to arc YZ. Therefore, any line, segment or ray that contains Y bisects arc XYZ.
3
Q
What is Theorem 9-5?
A
A diameter that is perpendicular to a chord bisects the chord and its arc.
4
Q
What is Theorem 9-6?
A
In the same circle or in congruent circles:
Chords equally distant from the center (or centers) are congruent
Congruent chords are equally distant from the center (or centers)
