Latin and Greek Roots: Week 14 "Six, Seven, Eight"

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Across
  1. 2. A sixth of a cirle; an instrument used to determine the position of a ship or an airplane by measuring the positions of the stars and the sun.
  2. 6. A person who is between 70 and 79 years old.
  3. 8. A flat (2-dimensional)figures with eight sides and eight angles.
  4. 9. A group of seven singers or musicians who perform together; a piece of music that is meant to be performed by seven people.
Down
  1. 1. The 10th month of the year by the current calendar; formerly the eighth month.
  2. 3. A group of eight, such as 8 musical notes or eight lines.
  3. 4. Lasting for seven years; happening once every seven years
  4. 5. A 2-dimensional (flat) figure with six sides and six angles.
  5. 7. Currently, the 9th month of the year; formerly the 7th month.
  6. 8. A sea animal with a soft body and eight long arms.