Latin/Greek roots crossword 6

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Across
  1. 1. a period of ten years
  2. 4. a nine-sided polygon
  3. 6. based on the number 10
Down
  1. 2. a period of 100 years
  2. 3. a length equal to 1⁄100 meter; ten millimeters
  3. 5. the eleventh month of the year, formerly the ninth