Shapes

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Across
  1. 1. A sharp 2d object with 4 sides, & at least one set of parallel lines.
  2. 4. a sharp 3d object with 6 equal faces & is equilateral.
  3. 8. A sharp 3d object with an indeterminate number of triangular faces.
  4. 10. A round 2d object with a set radius.
  5. 11. A sharp 2d object with 4 sides.
  6. 12. A round 3d object with a set radius.
Down
  1. 2. A sharp 2d object with 4 equal sides.
  2. 3. A sharp 3d object with 6 faces & is equilateral.
  3. 5. A round 2d object with a pair of foci.
  4. 6. A sharp 2d object with 4 equal sides & is equilateral.
  5. 7. A sharp 2d object with 4 sides & is equilateral.
  6. 9. A sharp 2d object with 3 sides