Geometry

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Across
  1. 3. More than 90 degrees
  2. 7. 90degrees
  3. 8. two pairs of parallel sides, four sides of equal length and four right angles
  4. 9. two pairs of parallel sides and four sides of equal length
  5. 10. all sides are the same length
  6. 11. 2D figures with angels, and no curves
  7. 13. it has 4 sides
Down
  1. 1. two sides the same length, one different
  2. 2. two sides of equal length, two pairs of parallel sides and four right angles
  3. 4. it has 3 sides
  4. 5. less than 90 degrees
  5. 6. one pair of parallel sides
  6. 11. two pairs of parallel sides and two pairs of sides with equal length
  7. 12. all length are different