uni, bi and tri

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Across
  1. 2. When people are working towards the same goals.
  2. 4. A vehicle with 2 wheels.
  3. 5. A sport event that includes swimming, running and cycling.
  4. 8. A stand with three legs that supports a camera.
  5. 9. A vehicle with one wheel.
  6. 11. A type of dinosaur that has three horns.
  7. 12. Negotiations, meetings or agreements that only occur between 2 groups or countries.
  8. 14. 3 letters that make up one sound.
  9. 15. A special type of clothing that generally looks the same.
  10. 16. Something that occurs once every 2 years.
  11. 17. Something that happens 2 times a week.
Down
  1. 1. A vehicle with 3 wheels.
  2. 3. A mythical animal with one horn.
  3. 4. A tool that helps you see things that are far away.
  4. 5. Any muscle that has three points attached at an end.
  5. 6. A place where you study and learn new things.
  6. 7. Something that occurs twice a year.
  7. 10. When someone can speak 2 languages.
  8. 13. A 2D shape with 3 straight sides and 3 angles.