TRANSFORMATIONS VOCABULARY

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Presentation transcript:

TRANSFORMATIONS VOCABULARY

VERTEX A point where two or more straight lines meet. A corner

REFLECTION An image or shape as it would be seen in a mirror.

ROTATION Circular movement around a fixed point

ISOMETRY An isometry is a transformation in which the original figure and its image are congruent

ORIENTATION The physical position of an object

PRE-IMAGE The original shape of a figure BEFORE it has been transformed; an original figure

CLOCKWISE Moving in the direction of the hands on a clock

DILATION To re-size a figure; make larger or smaller

SIMILAR When the only difference between 2 figures is size; shape and angle measure are the same

CONGRUENT When two figures have the same shape and SIZE

IMAGE The resultant shape of a figure after it has been transformed; the copy of a figure

CONGRUENT SIDES Sides that are the same length

COUNTER CLOCKWISE Going in the direction opposite of the hands of a clock; to the left

TRANSFORMATION Changing a shape using a • Turn • Flip • Slide, or • Resize

RIGID TRANSFORMATION A change in location of a figure without changing its shape or SIZE

TRANSLATION Sliding a shape without rotating or flipping it

LINE OF REFLECTION An imaginary line which lies directly in the middle between a figure and its image

CONGRUENT ANGLES Angles with the same measure

CENTER OF DILATION The point from which a figure is dilated

POINT OF ROTATION The point about which a figure is rotated

SCALE FACTOR A number which multiplies a quantity; the amount by which a figure increase or decrease in size

ANGLE OF ROTATION The measurement of the amount by which a figure is rotated

A PRIME (A’) A name given to a shape signifying that it is the result of a transformation