Showing posts with label Rotation. Show all posts
Showing posts with label Rotation. Show all posts

Tuesday, March 10, 2009

Definition of Rotation

Topic : Rotation

Question :
Define and Explain Rotation

Solution :

A rotation is a transformation, R degrees , that moves every point around a fixed point (usually the origin). Rotations > 0 are counterclockwise. Rotations <>
A rotation of 180ยบ is also called a point reflection in the origin.
Rotation:-- image is congruent to original figure.-- direct isometry
A rotation creates a figure that is congruent to the original figure and preserves distance and orientation – it is a direct isometry.