Emil's Crossword

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Across
  1. 1. A shape with seven sides
  2. 6. A shape with ten sides
  3. 9. Lisa remarked that the stop sign was very _____________
  4. 11. A continuing sound especially in a person where the pitch doesn't change
  5. 13. A polygon with nine sides
  6. 15. An oxide containing two atoms of oxygen in its molecule or empirical formula
  7. 16. The lower division of the seven liberal arts consisting of grammar, logic, and rhetoric
  8. 17. A plane figure with four straight sides and angles or a quadrilateral
  9. 18. A group or set of nine
Down
  1. 2. A shape with five sides
  2. 3. Judging by the rats scurrying across the store floor, Matthew felt that he and his friends had a...slight _________
  3. 4. A shape with six sides
  4. 5. An entire line of numbers with sixteen possible values for each digit
  5. 7. A hydrocarbon found in gasoline
  6. 8. A long speech spoken by a person in a single conversation
  7. 10. A line of verse consisting of seven metrical feet
  8. 12. A line of a verse consisting of five metrical feet, or two halves each of two feet and a long syllable
  9. 14. One of four joint rulers
  10. 15. A span of ten years
  11. 16. A three pronged spear