unit 1 (transformation) vocabulary Flashcards
transformation
a term for 4 ways to change a shape or its position
translation
moving something from one place to another
reflection
an image or shape as it would be seen in a mirror
rotation
rotating a shape a certain number of degrees around a given point
dilation
changing the size of an object without changing the shape
scale factor
the ratio between the scale of an original object and a new object
pre-image
image before being transformed
image
pre-image after transformations
composite transformations
2 or more transformation
rotational symmetry
when an object is rotated on its own axis but looks the same
reflection symmetry
a type pf symmetry where one side of reflected on the other side
line symmetry
the line hat divides a shape or an object into equal and symmetrical parts
regular polygons
a (blank) sides polygon that has equal side lengths and there is a line of symmetry in the center
rigid transformation (isometry)
a transformation that DOES NOT change the size of an image
non-rigid transformation
a transformation that DOES change the size, shape or both o the pre-image
