Unit 1

Question 1

a point where two or more edges meet

Answer 1

vertex

Question 2

a two-dimensional surface that extends indefinitely

Answer 2

plane

Question 3

to estimate or assess the extent or value of something

Answer 3

measure

Question 4

the position towards which something moves or faces

Answer 4

direction

Question 5

movement along a straight line without turning or changing the size or shape

Answer 5

slide

Question 6

circular movement around a given point

Answer 6

turn

Question 7

turn rightward from the 9 position across the top to the 3 position

Answer 7

clockwise

Question 8

turn leftward from the 3 position across the top to the 9 position

Answer 8

counterclockwise

Question 9

movement in which every point on a figure is mirrored across a line or plane; a type of transformation

Answer 9

reflection

Question 10

movement of every point on a figure around a given point by a given angle in a specific direction; a type of transformation

Answer 10

rotation

Question 11

movement of every point on a figure along a straight line for a given distance in a given direction without turning or changing the size or shape; a type of transformation

Answer 11

translation

Answer 12

opposite

Question 13

the resulting figure when an original figure is moved by translation, rotation, and/or reflection

Answer 13

image

Answer 14

angle of rotation

Answer 15

center of rotation

Answer 16

line of reflection

Question 17

a set of translations, rotations, reflections, and/or dilations performed on a figure in a given order

Answer 17

sequence of transformations

Answer 18

distance

Question 19

a two-dimensional surface formed by two number lines intersecting at right angles on the zero point of each line

Answer 19

coordinate plane

Answer 20

point

Answer 21

segment

Question 22

a pair of number used to determine the location of a point in a plane

Answer 22

coordinates

Question 23

horizontal number line in a coordinate plane

Answer 23

x-axis

Question 24

vertical number line in a coordinate plane

Answer 24

y-axis

Question 25

a plane figure with at least three straight sides and three angles

Answer 25

polygon

Question 26

any movement of a figure that does not change an measurements of it

Answer 26

rigid transformation

Answer 27

corresponding

Answer 28

measurement

Answer 29

preserve

Answer 30

midpoint

Answer 31

vertical angles

Question 32

lines that never intersect

Answer 32

parallel

Answer 33

intersect

Question 34

one figure can be moved with translations, rotations, and/or reflections to fit exactly over another figure

Answer 34

congruent

Answer 35

perimeter

Answer 36

area

Question 37

measures 90 degrees; formed by perpendicular lines

Answer 37

right angle

Question 38

inside parallel lines and on opposite sides of the transversal

Answer 38

alternate interior angles

Question 39

a line that intersects parallel lines

Answer 39

transversal

Answer 40

supplementary angles

Question 41

measures 180 degrees

Answer 41

straight angle

Question 42

a repeating pattern of one or more shapes which fit together perfectly and do not overlap

Answer 42

tessellation

Answer 43

symmetry

Question 44

a translation, rotation, reflection, or dilation; or any combination of these

Answer 44

transformation