Geometry Terms

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Across
  1. 1. A flattened out three dimensional solid.
  2. 4. A four-sided plane rectilinear figure with opposite sides parallel.
  3. 7. A mathematical relationship or rule expressed in symbols.
  4. 8. A line or surface on which a figure is regarded as standing.
Down
  1. 2. The outside limit of an object, area, or surface.
  2. 3. A parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides.
  3. 5. The branch of mathematics concerned with the properties an relation of points, lines, surfaces, solids, and other dimensional analogs.
  4. 6. Each of the surfaces of a solid.