# Study sets matching "geometry circles chapter 12"

Study sets

Diagrams

Classes

Users

Circle

Diameter

Radius

Chord

the set of all points in a plane that are equidistant from a g…

across the circle through the center of the circle

the distance from the center of the circle to a point on the c…

a segment whose endpoints are points on the circle (may or may…

Circle

the set of all points in a plane that are equidistant from a g…

Diameter

across the circle through the center of the circle

If a line is tangent to a circle, then

If a line in the plane of a circle is p…

If 2 tangent segments to a circle share…

Within a circle or in congruent circles…

The line is perpendicular to the radius at the point of tangen…

The line is a tangent to the circle.

The 2 segments are congruent.

Congruent arcs.

If a line is tangent to a circle, then

The line is perpendicular to the radius at the point of tangen…

If a line in the plane of a circle is p…

The line is a tangent to the circle.

adjacent arcs

arc

arc length

central angle

two arcs of the same circle that intersect at exactly one point

an unbroken part of a circle consisting of two points on the c…

the distance along an arc measured in linear units

an angle whose vertex if the center of a circle

adjacent arcs

two arcs of the same circle that intersect at exactly one point

arc

an unbroken part of a circle consisting of two points on the c…

Circle

center

radius

Diameter

A round plane figure whose boundary consists of points equidis…

The point at the middle of the circle

A straight line segment that reaches from the center of the sh…

A straight line segment passing through the center of a shape…

Circle

A round plane figure whose boundary consists of points equidis…

center

The point at the middle of the circle

Tangent to a circle

Point of tangency

Inscribed in

Circumscribed about

A line at intersects a circle in exactly one point. (Not locat…

The point where a tangent line intersects a circle. (Location)

A circle that is fully within another shape (Polygon)

A circle that is fully outside of another shape and intersects…

Tangent to a circle

A line at intersects a circle in exactly one point. (Not locat…

Point of tangency

The point where a tangent line intersects a circle. (Location)

radius

pi

circle

circumference

a segment with one endpoint on the circle and one endpoint at…

the ratio of a circle's circumference to its diameter

the locus of points in a plane that are a fixed distance from…

the distance around a circle

radius

a segment with one endpoint on the circle and one endpoint at…

pi

the ratio of a circle's circumference to its diameter

Circle

Congruent Circles

Radius

Diameter

The set of all points in a plane that are the same distance fr…

Two circles that have congruent radii.

The distance from the center to any point on the circle.

A straight line passing from side to side through the center o…

Circle

The set of all points in a plane that are the same distance fr…

Congruent Circles

Two circles that have congruent radii.

Circle

Diameter

Radius

Congruent Circles

Set of all points equidistant from the given point called "Cen…

Segment from one side of the circle to the other side.

Half of the diameter; One endpoint at the center, other on the…

Circles that have a congruent radii.

Circle

Set of all points equidistant from the given point called "Cen…

Diameter

Segment from one side of the circle to the other side.

Tangent line

Point of tangency

Perpendicular, radius

(n-2)180

a line in the plane of the circle that intersects the circle i…

the point where a circle and a tangent intersect

A tangent is ______ to the ______ of the circle at the point o…

Sum of angle measure formula

Tangent line

a line in the plane of the circle that intersects the circle i…

Point of tangency

the point where a circle and a tangent intersect

tangent

point of tangency

If a line is tangent to a circle...

If a line in the plane of a circle is p…

a line in the plane of the circle that intersects the circle i…

the point where a circle and a tangent intersect

Then the line is perpendicular to the radius at the point of t…

Then the line is tangent to the circle

tangent

a line in the plane of the circle that intersects the circle i…

point of tangency

the point where a circle and a tangent intersect

Adjacent Arcs:

Arc:

Arc length:

Two arcs of the same circle that intersect at exactly one point

An unbroken part of a circle consisting of two points on the c…

The distance along an arc measured in linear units

Adjacent Arcs:

Two arcs of the same circle that intersect at exactly one point

Arc:

An unbroken part of a circle consisting of two points on the c…

radius

sphere

semicircle

point of tangency

the given distance from the center of the circle to a point on…

the set of all points equidistant from a given point

half a circle; arc that has a measure equal to 180°

the point of intersection of a tangent and a circle

radius

the given distance from the center of the circle to a point on…

sphere

the set of all points equidistant from a given point

Tangent line

If two tangent segments to a circle sha…

Within a circle or in congruent circles…

Within a circle or in congruent circles…

Perpendicular to the radius at the point of tangency

Congruent

Congruent arcs

Chords

Tangent line

Perpendicular to the radius at the point of tangency

If two tangent segments to a circle sha…

Congruent

Circle

Concentric

Chord

Diameter

A circle is the set of all points in a plane that are at a giv…

Circles are concentric iff they lie in the same plane and have…

A chord of a circle is a line segment that joins two points on…

The diameter of a circle is a chord that contains the center

Circle

A circle is the set of all points in a plane that are at a giv…

Concentric

Circles are concentric iff they lie in the same plane and have…

Center of a Circle

Radius

Diameter (segment)

Chord

a point equidistant to every point on a circle and named by ce…

segment joining center of circle to a point on the circle

segment joining two points on the circle and must pass through…

a segment joining 2 points on a circle but does not go through…

Center of a Circle

a point equidistant to every point on a circle and named by ce…

Radius

segment joining center of circle to a point on the circle

Chord

Secant

Tangent

Point of tangency

Segment that has endpoints on a circle.

Line that intersects a circle at 2 Points

Line that is in the same plane as a circle and intersects the…

Point of intersection of a circle or sphere with a tangent lin…

Chord

Segment that has endpoints on a circle.

Secant

Line that intersects a circle at 2 Points

chord

secant

tangent

point of tangency

segment whose endpoints lie on a circle

line that intersects a circle at two points

line in the same plane as a circle that intersects the circle…

What is the point at which a tangent intersects a circle calle…

chord

segment whose endpoints lie on a circle

secant

line that intersects a circle at two points

Radius

Diameter

Chord

Secant

The distance from the center of a circle to any point on the c…

A chord that passes through the center of the circle

A segment whose endpoints lie on a circle

Any line that intersects a circle in exactly two points

Radius

The distance from the center of a circle to any point on the c…

Diameter

A chord that passes through the center of the circle

circle

center

radius

chord

all the points in a plane equidistant from a given point

the point in a circle from which all points in the plane are e…

a segment whose endpoints are the center and any point on the…

a segment whose endpoints are on the circle

circle

all the points in a plane equidistant from a given point

center

the point in a circle from which all points in the plane are e…

interior of a circle

exterior of a circle

chord

secant

the set of all points inside the circle

the set of all points outside the circle

a segment whose endpoints lie on a circle

a line that intersects a circle at two points

interior of a circle

the set of all points inside the circle

exterior of a circle

the set of all points outside the circle

12.1 interior of a circle

12.1 exterior of a circle

12.1 chord

12.1 secant

the set of all points inside the circle

the set of all points outside the circle

a segment whose endpoints lie on a circle

a line that intersects a circle at two points

12.1 interior of a circle

the set of all points inside the circle

12.1 exterior of a circle

the set of all points outside the circle

tangent line

point of tangency

chord

central angle

a line in the plane of a circle that intersects the circle in…

the point where a tangent and a circle intersect

a segment whose endpoints are on the circle

an angle whose vertex is the center of a circle

tangent line

a line in the plane of a circle that intersects the circle in…

point of tangency

the point where a tangent and a circle intersect

circle

center

radius

chord

all the points in a plane equidistant from a given point

the point in a circle from which all points in the plane are e…

a segment whose endpoints are the center and any point on the…

a segment whose endpoints are on the circle

circle

all the points in a plane equidistant from a given point

center

the point in a circle from which all points in the plane are e…