Unit 1

1234567
Across
  1. 2. number named by a unit with 9 zeros after it
  2. 4. animal with a singular horn on top if its head
  3. 5. one wheeled vehicle
  4. 7. geometric figure of 3 sides
Down
  1. 1. lasting for two hundred years
  2. 3. being three sided
  3. 5. to make one
  4. 6. lasting for two years