Chapter 10.3

Question 1

Minor arc

Answer 1

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

Question 2

Measure of a minor arc

Answer 2

The measure of the central angle

Question 3

Semicircle

Answer 3

An Ark whose endpoints are the endpoints of the diameter

Question 4

Major arc

Answer 4

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

Question 5

Measure of a major arc

Answer 5

360° minus the measure of the associated minor arc

Question 6

Adjacent arcs

Answer 6

Two arcs of the same circle are adjacent if they intersect at exactly 1 point

Question 7

Arc addition postulate

Answer 7

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

Question 8

Congruent arcs

Answer 8

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

Question 9

Theorem 10.4

Answer 9

In the same circle or in congruent circles, two arcs are congruent if and only if their central angles are congruent

Question 10

Central angle

Answer 10

An angle whose vertex is the center of the circle