12-2

Question 1

Congruent arcs theorem

Answer 1

within a circle or in two congruent circles, congruent central angles have congruent arcs

Question 2

congruent chords thrm

Answer 2

within a circle or two congruent circles, congruent central angles have congruent chords

Question 3

corresponding arcs and chords thrm

Answer 3

within a circle or in congruent circles, congruent chords have congruent arcs.

Question 4

Equidistant chords thrm

Answer 4

within a circle or in congruent circles, chords equidistant from the center or centers are congruent

Question 5

Diam bisector thrm

Answer 5

in a circle if a diameter is perpendicular to a chord, then it bisects the chord and arc.

Question 6

Diameter bisector converse

Answer 6

in a circle if a diameter bisects a chord then it is perpendicular to the chord

Question 7

diameter bisector corollary

Answer 7

in a circle the perpendicular bisector of a chord contains the center of the circle