Packaging crossword From:isaac wong

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Across
  1. 3. a line segment on a boundary
  2. 4. to flip,reflect,or slide
  3. 6. the line going vertical on a plane
  4. 8. flat surface on a shape
  5. 9. the shape slides across the plane
Down
  1. 1. for the shape to be reflected across a plane
  2. 2. to flip the object normal (shape or size)
  3. 5. repeating shapes that leave no gaps
  4. 7. the line going horizontal on a plane