10.3

Question 0

Minor arc

Answer 0

Consists of the end points of the central angel and all points on the circle that are in the interior of the central angle

Question 1

Central angle

Answer 1

An angle whose vertex is the center or the circle

Question 2

Semicircle

Answer 2

An arc whose end points are the endpoints of the diameter

Question 3

Major arc

Answer 3

Consists of the endpoints of the central angle and all points on the circle that lie in the exterior of the central angle

Question 4

Postulate 21: arc addition postulate

Answer 4

The measure of an arc formed by two adjacent arcs is the sum of the measures of the two arcs

Question 5

Adjacent arcs

Answer 5

Two arcs of the same circle are adjacent if they intersect at exactly one point

Question 6

Congruent arcs

Answer 6

In the same circle or congruent circles, two arcs are congruent if they have the same measure

Question 7

Theorem 10.4

Answer 7

In the same circle or congruent circles, two arcs are congruent iff their central angles are congruent