symmetry

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Across
  1. 3. has four equal sides
  2. 4. ball
  3. 7. triangle with 3 lines of symmetry
  4. 9. has four right angles
  5. 10. in the corner
  6. 11. ..... of symmetry
  7. 13. straw
  8. 14. die
  9. 15. side
Down
  1. 1. only two sides are parallel
  2. 2. can be filled with ice cream
  3. 5. sides are parallel two by two
  4. 6. has equal diagonals
  5. 8. beautiful in Egypt
  6. 9. on the edge
  7. 12. surface of a solid
  8. 13. room