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Transformations and Similarity
10 note cards
13
Mathematics
Not Applicable
12/01/2005

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Cards

Term
1.Image
2.Preimage
Definition
1.A new figure
2. The orignal figure used to make the image
Term
Transformation
Definition
An opperation the maps, or moves the preimage onto the image.
Term
Isometry
Definition
A transformation that preserves lengths.
Term
Reflection
Definition
A type of translation that use a line that act likes a mirror, with an image reflected in the line.
Term
Line of Reflection
Definition
The mirror line used in an reflection.
Term
Rotation
Definition
A transformation in which a figure is turned about a fixed point.
Term
Center of rotation
Definition
The fixed point that a rotation moves by.
Term
Angle of Rotation
Definition
Rays drawn from the center of rotation to a point and its image.
Term
Translation
Definition
A transformation tha maps every two points P and Q to P' and Q' so that PP'=QQ' and segment PP' is parallel to segment QQ' or they are both collinear.
Term
Vector
Definition
A quantity that has both direction and magnitude.
Term
Composition
Definition
Two or more transformations are combined to produce a single transformation.
Term
Similar Polygons
Definition
Correspondence between two polygons such that their corresponding angles are congruent and the lengths of corresponding sides are proportional.
Term
Dilation
Definition
A dilation with center C and scale factor k is a transformation that maps every point in the plane to a point P'.
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