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Geometry

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8.G.A.1 Verify experimentally the properties of rotations, reflections, and translations:
8.G.A.2 Understand that a two-dimensional figure is congruent to another if the second can be obtained...
8.G.A.3 Describe the effect of dilations, translations, rotations, and reflections on two-dimensional...
8.G.A.4 Understand that a two-dimensional figure is similar to another if the second can be obtained from...
8.G.A.5 Use informal arguments to establish facts about the angle sum and exterior angle of triangles,...