Chapter 6- Circles

Question 0

The given distance from the center to the set of points in a circle

Answer 0

Radius

Question 1

The set of all points in a plane at a given distance from a given point

Answer 1

Circle

Question 2

Line segment whose endpoints lie on the circle

Answer 2

Chord

Question 3

Largest chord

Answer 3

Diameter

Question 4

Line segment that passes through the center

Answer 4

Diameter

Question 5

Line that touches the circle in only one place on the outside

Answer 5

Tangent line

Question 6

Two or more circles that have the same radius

Answer 6

Congruent circles

Question 7

Two or more coplanar circles that share the same center

Answer 7

Concentric circles

Question 8

Two points on the circle and a continuous part of the circle between the points

Answer 8

Arc

Question 9

Arc of a circle whose endpoints are the endpoints of the diameter

Answer 9

Semicircle

Question 10

Arc of a circle that is smaller than a semicircle

Answer 10

Minor arc

Question 11

Arc of a circle that is bigger than a semicircle

Answer 11

Major arc

Question 12

The measure of the central angle that intercepts an arc

Answer 12

Arc measure

Question 13

An angle whose vertex is the center of a circle and whose sides pass through the endpoints of an arc

Answer 13

Central angle

Question 14

Segment that touches the circle in only one place

Answer 14

Tangent segment

Question 15

Two circles that are tangent to the same line at the same point

Answer 15

Tangent circles

Question 16

An angle that has its vertex at the center of the circle

Answer 16

Central angle

Question 17

An angle that has its vertex on the circle and it’s sides as chords

Answer 17

Inscribed angle

Question 18

The measure of the central angle is equal to the measure of it’s intercepted arc

Answer 18

Central angle intercepted arc postulate

Question 19

If two chords in a circle are congruent, then they determine two central angles that are congruent

Answer 19

Chord central angles theorem

Question 20

If two chords in a circle are congruent, then their intercepted arcs are congruent

Answer 20

Chord arcs theorem

Question 21

The perpendicular from the center of a circle to a chord is the bisector of the chord

Answer 21

Perpendicular to a chord theorem

Question 22

Two congruent chords in a circle are equidistant From the center of the circle

Answer 22

Chord distance to center conjecture

Question 23

The perpendicular bisector of a chord passes through the center of a circle

Answer 23

Perpendicular bisector of a chord conjecture

Question 24

The measure of the angle formed by two intersecting tangents to a circle is supplementary to the smaller intercepted arc

Answer 24

Intersecting tangents conjecture

Question 25

Circumference

Answer 25

Distance around a circle

Question 26

Exact answer

Answer 26

Non rounded solution

Question 27

Approximate answer

Answer 27

Use a rounded number for calculations at very end - round to three decimal places unless otherwise stated

Question 28

Arc length

Answer 28

AL = θ
—- x C
360