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Transformation
Chapter 7
10
Mathematics
9th Grade
03/29/2011

Additional Mathematics Flashcards

 


 

Cards

Term

 

 

Image

Definition

 

The new image that results from the transformation of a figure in a plane

Term

 

 

Preimage

Definition

 

The orignal figure in the transformation of a figure in a plane

Term

 

 

Translation

Definition
A type of transformation that maps every two points P and Q in the plane to points P' and Q', so that the following two properties are true. (1) PP' = QQ'(2) line PP is parallel to segment QQ' or segment QQ' are collinear
Term

 

 

Isometry

Definition


A translation that preserves lengths, also called rigid transformation

Term

 

 

Reflection

Definition
A type of transformation that uses a line that acts like a mirror, called the line of reflection, with an image reflection in the line.
Term

 

 

Line of symmetry

Definition


A line that figure in the plane has if the figure can be mapped onto itself by a reflection in the line.

Term

 

 

Rotation

Definition

 

A type of transformation in which a figure is turned about a fixed point, called the center of rotation.

Term

 

 

Angle of rotation

Definition

 

The angle formed when rays are drawn from the center of rotation to a point and its image

Term

 


Rotation Theorem


Definition

 

 

A rotation is an isometry

Term

 

 

Translation Theorem

Definition

 

 

A translation is an isometry

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