GEO-G.CO.4

GEO-G.CO.4

Develop definitions of rotations, reflections, and translations in terms of points, angles, circles, perpendicular lines, parallel lines, and line segments.

Predecessors

  • NY-8.G.1

Notes

  • Include point reflections.
  • A translation displaces every point in the plane by the same distance (in the same direction) and can be described using a vector.
  • A rotation requires knowing the center/point and the measure/direction of the angle of rotation.
  • A line reflection requires a line and the knowledge of perpendicular bisectors.

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