Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
transformation
|
a change in position, shape, or size of a figure.
|
|
|
isometry
|
a transformation in which the preimage and image are congruent.
|
|
|
reflection
|
an isometry in which the preimage and its image are congruent.
|
|
|
translation
|
an isometry in which all points of a figure move the same distance in the same direction.
|
|
|
glide reflection
|
a translation followed by a reflection in a line parallel to the translation vector.
|
|
|
tessellation
|
a repeating pattern of figures that completely covers a plane, without gaps or overlaps.
|
|
|
dilation
|
a transformation that proportionally reduces or enlarges a figure.
|
|
|
symmetry
|
an isometry that maps the figure onto itself.
|
|
|
reflectional symmetry/
line symmetry |
in a plane figure, one half of the figure is a mirror image to its other half.
|
|
|
rotational symmetry
|
its own image for some rotation of 180 degrees or less
|
|
|
point symmetry
|
has 180 degree rotational symmetry.
|
|
|
translational symmetry
|
the type of symmetry for which there is a translation that maps a figure into itself.
|
|
|
glide reflectional symmetry
|
if a tessellation can be mapped onto itself by a glide reflection.
|
|
|
dilation
|
a similarity transformation because its preimage and image are similar figures.
|
|
|
enlargement
|
when the scale factor is greater than one
|
|
|
reduction
|
when the scale factor is between 0 and 1
|
|
|
scalar multlipication
|
the multiplication of each entry in a matrix by the same number, the SCALAR.
|
