Number prefixes

12345678910
Across
  1. 5. -the belief in one god
  2. 7. -a shape with 9 sides
  3. 8. -shape with three sides and 3 angles
  4. 9. -a four sided shape
  5. 10. -a creature with 6 legs
Down
  1. 1. -used to view objects closely
  2. 2. -an athletic event with 5 events
  3. 3. -a period of 10 years
  4. 4. -a group of 7 people
  5. 6. -an underwater creature with 8 tentacles