Monday, February 20, 2012

Aim:How do we use the other definitions of transformations?

Glide reflection
The combination of a reflection in a line and a translation along
 that line.

Orientation
Orientation refers to the arrangment of points relative to one another after a transformation
 has occured.

Isometry
An isometry is a transformation that preserves length.

A direct isometry preserves orientation.

Opposite isometry changes the order clockwise or counter clockwise.

Invariant
A figure  or property that remains unchanged under a transformation of the plane is
 referred to as invariant. Meaning no variations(changes) have occured.


Question

What is the vocabulary
word that means it  preserves the same length?





1 comment:

  1. ok. how else could you describe "glide reflection"? is there an example?

    for orientation, is there a specific arrangement of points that you are referring to?

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