# Study sets matching "geometry chapter 12"

Chord

Inscribed Angle

Intercepted Arc

Tangent Line

A line segment on the interior of a circle.

an angle whose vertex is on a circle and whose sides contain c…

The arc that lies in the interior of an inscribed angle and ha…

A line that intersects the circle in exactly one point

Chord

A line segment on the interior of a circle.

Inscribed Angle

an angle whose vertex is on a circle and whose sides contain c…

ADJACENT ARCS

ARC

ARC LENGTH

CENTRAL ANGLE OF A CIRCLE

Two arcs of the same circle ... that intersect at exactly one poi…

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

The distance along the arc measured in linear units.

An angle whose vertex is the center of a circle.

ADJACENT ARCS

Two arcs of the same circle ... that intersect at exactly one poi…

ARC

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

Polyhedron

Faces

Edge

Vertex

a solid that is made by polygons

flat enclosed sides that make up a shape

Where 2 faces meet

Corner

Polyhedron

a solid that is made by polygons

Faces

flat enclosed sides that make up a shape

Solid

Ployhedron

Flat

Edge

3D figure composed of flat and curved surfaces

Solid with all flat surfaces that encloses single region of sp…

Flat surface

Line segment at which 2 faces intersect

Solid

3D figure composed of flat and curved surfaces

Ployhedron

Solid with all flat surfaces that encloses single region of sp…

Polyhedron

Faces

Edge

Vertex

a solid that is made by polygons

flat enclosed sides that make up a shape

Where 2 faces meet

Corner

Polyhedron

a solid that is made by polygons

Faces

flat enclosed sides that make up a shape

What is a tangent to a circle?

What is the distance from the center to…

What is the perpendicular distance from…

Theorem 10-6: The area of a regular pol…

a line that intersects the circle in exactly one point

radius

apothem

half; apothem; perimeter

What is a tangent to a circle?

a line that intersects the circle in exactly one point

What is the distance from the center to…

radius

interior of a circle

exterior of a circle

chord

secant

a segment whose endpoints lie on a circle.

the set of all points OUTSIDE of a circle

a segment whose endpoints lie ON a circle

a line that INTERSECTS a circle at two points

interior of a circle

a segment whose endpoints lie on a circle.

exterior of a circle

the set of all points OUTSIDE of a circle

Altitude

Axis

Composite Solid

Congruent Solids

In a prism or cylinder, a segment perpendicular to the bases w…

The segment with endpoints at the center of the base of a cyli…

A three-dimensional figure that is composed of simpler figures.

Two solids with the same shape, size and scale factor of 1:1.

Altitude

In a prism or cylinder, a segment perpendicular to the bases w…

Axis

The segment with endpoints at the center of the base of a cyli…

acute triangle

obtuse triangle

right triangle

equilateral triangle

A triangle that contains only angles that are less than 90 deg…

a triangle with one obtuse angle

a triangle with one right angle

a triangle with three congruent sides

acute triangle

A triangle that contains only angles that are less than 90 deg…

obtuse triangle

a triangle with one obtuse angle

acute triangle

obtuse triangle

right triangle

equilateral triangle

A triangle that contains only angles that are less than 90 deg…

a triangle with one obtuse angle

a triangle with one right angle

a triangle with three congruent sides

acute triangle

A triangle that contains only angles that are less than 90 deg…

obtuse triangle

a triangle with one obtuse angle

endpoint

line segment

line

ray

a point at the end of a line segment or ray

a part of a line that includes two endpoints

a straight path that extending in both directions with no end…

a straight path that starts at one point and continues forever…

endpoint

a point at the end of a line segment or ray

line segment

a part of a line that includes two endpoints

Circle

Center of a circle

Interior of a circle

Exterior of a circle

set of all points that are equidistant from a given point

a given point that defines a circle

set of all points inside the circle

set of all points outside the circle

Circle

set of all points that are equidistant from a given point

Center of a circle

a given point that defines a circle

Chord

Circumscribed about

Inscribed angle

Inscribed in

Segments with endpoints on a circle

triangle, polygon outside of circle, each side is tangent to t…

the vertex is on a circle and sides of the angle are chords of…

triangle, polygon inside of circle, all of the vertices lie on…

Chord

Segments with endpoints on a circle

Circumscribed about

triangle, polygon outside of circle, each side is tangent to t…

ADJACENT ARCS

ARC LENGTH

CENTRAL ANGLE OF A CIRCLE

CHORD

Two arcs of the same circle ... that intersect at exactly one poi…

The distance along the arc measured in linear units.... (not meas…

Has the same measure as an intercepted arc.

A segment whose endpoints lie on a cirlce

ADJACENT ARCS

Two arcs of the same circle ... that intersect at exactly one poi…

ARC LENGTH

The distance along the arc measured in linear units.... (not meas…

Polyhedron

Faces

Edge

Vertex

a solid that is made by polygons

flat enclosed sides that make up a shape

Where 2 faces meet

Corner

Polyhedron

a solid that is made by polygons

Faces

flat enclosed sides that make up a shape

isometric views

Know how to use isometric dot paper to…

cross section

there are 3 types of cross sections

or corner views, where 3D geometric solids are represented on…

Know this!

the intersection of a solid and a plane

1. Horizontal cut 2. Angled cut 3. vertical cut. This is an ex…

isometric views

or corner views, where 3D geometric solids are represented on…

Know how to use isometric dot paper to…

Know this!

circle

center

congruent circles

secant

the set of all points in a plane, equidistant from the center

the given point that defines a circle

circles with the same radii

a line that intersects a circle at 2 points

circle

the set of all points in a plane, equidistant from the center

center

the given point that defines a circle

polygon

perpendicular lines

right angle

rectangle

A closed plane shape with straight sides that are line segment…

Lines that intersect to form right angles.

An angle that forms a square corner.

A quadrilateral with two pairs of parallel sides. A square is…

polygon

A closed plane shape with straight sides that are line segment…

perpendicular lines

Lines that intersect to form right angles.

angle

closed shape

line

line segment

a shape formed by two rays that share the same endpoint

a shape that begins and ends at the same point

a straight path extending in both directions with no endpoints

a part of a line that includes two endpoints and all the point…

angle

a shape formed by two rays that share the same endpoint

closed shape

a shape that begins and ends at the same point

chord

secant line

tangent

concentric circle

a segment whose endpoints are on the circle

line that intersects a circle in two points

line thats in the plane of the circle that intersects at just…

coplanar circles that have a common center

chord

a segment whose endpoints are on the circle

secant line

line that intersects a circle in two points

circle

Radius

Concentric Circles

Congruent Circles

set of all points in a plane equidistant from a given point ca…

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

coplanar circles with the same center

circles with congruent radii

circle

set of all points in a plane equidistant from a given point ca…

Radius

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

Circle

Circles are Concentric iff

Radius

All radii of a circle are

the set of all points in a plane that are at a given distance…

they lie in the same plane and have the same center.

a line segment that connects the center of the circle to any p…

equal.

Circle

the set of all points in a plane that are at a given distance…

Circles are Concentric iff

they lie in the same plane and have the same center.