PETER'S AWESOME PUZZLE

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Across
  1. 1. of something
  2. 3. real number expressed in base or a fraction.
  3. 4. the 10th month in a calendar year
  4. 6. means a period of 100 years.
  5. 7. musical interval of eight tones
  6. 8. and essential essence of something
  7. 9. animal with four feet.
  8. 10. to do with a 200th anniversary
  9. 11. rate,number,or amount in each hundred
  10. 12. term for Celsius
  11. 14. 4 parts
  12. 19. closed five sided shape with 5 straight sides and angles
  13. 20. plane figure having four angles and four sides, as a square.
  14. 21. 10 years
Down
  1. 1. set or group of five persons or things
  2. 2. Unit of measurement for the metric unit.It is 100 millimeters and it takes 100 to make a meter
  3. 5. to a 100th anniversary
  4. 7. polygon having eight angles and eight sides
  5. 8. children born at the same time and the same mother.
  6. 13. group or combination of four associated by common properties or behavior.
  7. 14. most perfect embodiment of something
  8. 15. to destroy a large number of
  9. 16. singers or musicians in a company
  10. 17. GROUP OF FOUR PEOPLE SINGING
  11. 18. athletic event with 10 activities for people to show off their abilities in competition