Issam Crosswords puzzle

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Across
  1. 2. a period of time of 100 years
  2. 5. any group or combination of four
  3. 7. a polygon having 8 sides and 8 angles
  4. 8. a group of five people.
  5. 9. a company of eight singers or musicians
Down
  1. 1. a polygon having five sides and five angles
  2. 3. 100th of a meter
  3. 4. pertaining to tenths or to the number 10
  4. 5. a group of four people
  5. 6. a rate of proportion per hundred