Understand congruence and similarity using physical models, transparencies, or geometry software

Verify experimentally the properties of rotations, reflections, and translations

3 standards

Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations

Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates

Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, and dilations

Use informal arguments to establish facts about angles and similarity of triangles