Common Core Mathematics 912    Cluster  Understand similarity in terms of similarity transformations    Topics  1. Similarity, Right Triangles, and Trigonometry; 2. Geometry 
    Grade 912     G.SRT.1.  Verify experimentally the properties of dilations given by a center and
a scale factor:
a. A dilation takes a line not passing through the center of the
dilation to a parallel line, and leaves a line passing through the
center unchanged.
b. The dilation of a line segment is longer or shorter in the ratio
given by the scale factor.    

