Crossword Spelling

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Across
  1. 2. A shape with six sides.
  2. 4. A musical scale of six notes with a half step between the third and fourth.
  3. 9. Type of operation.
  4. 11. A large number of people or things.
  5. 12. A machine designed to detect and record changes in physiological characteristics.
  6. 13. A line of verse consisting of seven metrical feet.
  7. 15. Ten years.
Down
  1. 1. A shape with ten sides.
  2. 3. Having or involving several parts.
  3. 4. A shape with seven sides.
  4. 5. A shape with eight sides.
  5. 6. Type of fabric.
  6. 7. Type of sided shape.
  7. 8. A sea animal with eight legs/arms.
  8. 10. Obtain from (a number) another that contains the first number a specified number of times.
  9. 14. To do serval things at once.