North Dakota Academic Content Standards
Understand congruence and similarity using physical models, transparencies, or geometry software.
8.G.1. Understand the properties of rotations, reflections, and translations by experimentation:
8.G.1.a. Lines are transformed onto lines, and line segments onto line segments of the same length.
8.G.1.b. Angles are transformed onto angles of the same measure.
8.G.1.c. Parallel lines are transformed onto parallel lines.