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WorksheetsTransformations Vocabulary in Geometry
Total questions: 14
Worksheet time: 7mins
Translation
to slide
to rotate
to reflect
to dilate
Image
any 2D shape after transformation takes place
a 3D shape that has been rotated
a shape that has been colored
a shape that has been resized without changing its proportions
Line of Reflection
The line over which a figure is flipped to create a mirror image in a reflection.
A line that divides a shape into two equal parts.
A line that represents the axis of rotation.
A line that connects two points in a geometric figure.
isometry
a transformation where the pre-image and image are congruent
a transformation that changes the size of a shape
a transformation that rotates a shape without changing its position
a transformation that reflects a shape across a line
4 different types of transformations
translations, rotation, reflection, dilation
addition, subtraction, multiplication, division
scaling, shifting, flipping, rotating
expansion, contraction, translation, inversion
reflective symmetry
occurs when a line can divide a figure into two equal parts
is when a figure can be rotated around a point and look the same
is a type of symmetry that involves scaling a figure
occurs when a figure is identical on both sides of a central line
Counter-clockwise
The direction the hands on a clock move.
The opposite direction the hands on a clock move. The abbreviation for counter-clockwise is CCW.
A term used to describe clockwise movement.
A direction that is always to the right.
clockwise
the same direction the hands on the clock move -- abbreviated CW
the opposite direction of the hands on the clock
a term used to describe a leftward motion
a direction that is perpendicular to the hands of the clock
reflection
a transformation that creates a mirror image or 'flips' over a line
a process of bending light to create a rainbow
a method of rotating an object around a point
a technique for enlarging an image
Transformation
The process of changing the color of a figure.
The movement or mapping of all points of a figure in a plane according to a common operation.
The act of rotating a figure around a point.
The method of measuring the area of a figure.
rotation
a transformation that turns a figure about a fixed point through a given angle and a given direction
a transformation that flips a figure over a line
a transformation that slides a figure from one position to another
a transformation that enlarges or reduces a figure
rotational symetry
A figure can be reflected over a line and remain unchanged.
A figure can be turned onto itself by a rotation about the center of the figure.
A figure can be translated along a straight path without changing its shape.
A figure can be stretched or compressed while maintaining its proportions.
pre-image
any 2D shape before a transformation takes place
a 3D shape after a transformation
a shape that has been rotated
a shape that has been reflected
Congruent
Congruent figures have the same shape and size.
Congruent figures can have different sizes but the same shape.
Congruent figures are always larger than non-congruent figures.
Congruent figures can be transformed into each other by changing their angles.
