lesson 12-2

Question 1

chord

Answer 1

a segment who’s endpoints are on a circle

Question 2

thm 12-4

Answer 2

within a circle or congruent circles congruent central angles have congruent arcs

Question 3

thm 12-4 converse

Answer 3

within a circle or congruent circles congruent arcs have congruent central angles

Question 4

thm 12-5

Answer 4

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

Question 4

thm 12-5 converse

Answer 4

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

Question 5

thm 12-6

Answer 5

within a circle or congruent circles congruent chords have congruent arcs

Question 6

thm 12-6 converse

Answer 6

within a circle or congruent circles congruent arcs have congruent chords

Question 7

thm 12-7

Answer 7

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

Question 8

thm 12-7 converse

Answer 8

within a circle or congruent circles congruent chords are equidistant from the center(s)

Question 9

thm 12-8

Answer 9

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

Question 10

thm 12-9

Answer 10

in a circle, if a diameter bisects a chord then it is perp. to the chord

Question 11

thm 12-10

Answer 11

in a circle, the perpendicular bisects it a chord contains the center of the circle (diameter)