Chapters 9-10

Question 0

a function that maps each point to its image along a vector (what is the name of the vector)

Answer 0

translation vector

Question 1

the name of the line that a reflection or flip is made over

Answer 1

line of refection

Question 2

a rotation about a fixed point

Answer 2

center of rotation

Question 3

the angle made by the pre-image, center of rotation, and image points

Answer 3

angle of rotation

Question 4

when a transformation is applied to a figure and then another transformation is applied to its image, the result is called this

Answer 4

composition of transformations

Question 5

composition of a translation followed by a reflection in a line parallel to the translation vector

Answer 5

glide reflection

Question 6

a figure has this if there exists a rigid motion-reflection, translation, rotation, or glide reflection-that maps the figure onto itself

Answer 6

symmetry

Question 7

a figure in the plane has this if the figure can be mapped onto itself by a reflection in a line

Answer 7

line symmetry (or reflection symmetry)

Question 8

the line a reflection if reflected over

Answer 8

line of symmetry (or axis of symmetry)

Question 9

a figure in the plane has this if the figure can be mapped onto itself y a rotation between 0 degrees and 360 degrees about the center of the figure

Answer 9

rotational symmetry (radial symmetry)

Question 10

the center of a figure with symmetry

Answer 10

center of symmetry

Question 11

the number of times a figure maps onto itself as it rotates from 0 degrees to 360 degrees

Answer 11

order of symmetry

Question 12

the smallest angle through which a figure can be rotated so that it maps onto itself

Answer 12

magnitude of symmetry (or angle of rotation)

Question 13

a 3D figure has this if the figure can be mapped onto itself by a reflection in a plane

Answer 13

plane symmetry

Question 14

a 3d figure has this if the figure can be mapped onto itself by a rotation between 0 degreed and 360 degrees in a line

Answer 14

axis symmetry

Question 15

locus or set of all points in a plane equidistant from a given point

Answer 15

circle

Question 16

the given point in a circle

Answer 16

center

Question 17

a segment with endpoints at the center and on the circle

Answer 17

radius

Question 18

a segment with endpoints on the circle

Answer 18

chord

Question 19

a chord that passes through the center and is made up of collinear radii

Answer 19

diameter

Question 20

coplanar circles that have the same center

Answer 20

concentric circles

Question 21

the distance around the circe

Answer 21

circumference

Question 22

C/d

Answer 22

pi

Question 23

a polygon is ________in a circle if all of its vertices lie on the circle

Answer 23

inscribed

Question 24

a circle is _________ about a polygon if it contains all the vertices of the polygon

Answer 24

circumscribed

Question 25

an angle with a vertex in the center of the circle

Answer 25

central angle

Question 26

a portion of a circle defined by two endpoints

Answer 26

arc

Question 27

the shortest are connecting two endpoints on a circle

Answer 27

minor arc

Question 28

the longest arc connecting two endpoints on a circle

Answer 28

major arc

Question 29

an arc with endpoints that lie on a diameter

Answer 29

semicircle

Question 30

arcs in the same or congruent circles that have the same measure

Answer 30

congruent arcs

Question 31

arcs in a circle that have exactly one point in common

Answer 31

adjacent arcs

Question 32

the distance between the endpoints along an arc measured in linear units

Answer 32

arc length

Question 33

has a vertex on a circle and sides that contain chords of the circle

Answer 33

inscribed angle

Question 34

has endpoints on the sides of an inscribed angle and lies in the interior of the inscribed angle

Answer 34

intercepted arc

Question 35

a line in the same plane as a circle that intersects the circle in exactly one point

Answer 35

tangent

Question 36

the point where a line and circle connect

Answer 36

point of tangency

Question 37

a line, ray, or segment that is tangent to two circles in the same plane

Answer 37

common tangent

Question 38

a line that intersects a circle in exactly two points

Answer 38

secant

Question 39

parts of a chord

Answer 39

chord segments

Question 40

a segment of a secant line that has exactly one endpoint on the circle

Answer 40

secant segment

Question 41

a secant segment that lies in the exterior of the circle

Answer 41

external secant segment

Question 42

segment of a tangent with one endpoint on the circle

Answer 42

tangent segment