3D forms

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Across
  1. 4. regular shapes
  2. 6. moving
  3. 10. free/flowing
  4. 12. rough surface
  5. 13. fat/round
Down
  1. 1. flat
  2. 2. even surface
  3. 3. flowing lines
  4. 5. twisted
  5. 7. many-edged
  6. 8. graceful
  7. 9. light or weightless
  8. 11. like a cube