Geometry Crossword

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Across
  1. 7. Acute, Obtuse
  2. 8. Shape with 6 sides
  3. 11. When 2 lines cross and make 4 right angles
  4. 13. A unit used to measure distances around a circle
  5. 14. A continuous mark
  6. 15. A closed 2-dimensional figure
Down
  1. 1. Shape with 4 equal sides
  2. 2. Lines that never intersect
  3. 3. The total space inside of a shape
  4. 4. Shapes that have 4 sides
  5. 5. Shape with 3 sides
  6. 6. Where 2 lines meet
  7. 9. A quadrilateral with both pairs of opposite sides parallel
  8. 10. Where 2 or more lines intersect
  9. 12. Perfectly round, has no corners