Точки А, В i С розміщено на прямій так, що АВ = 3,2 см, АС = 4,8 см, ВС = 8 см. Чи є промені АВ i AC доповняльними?

1. He flies to the company's head office in Brussels once a week.
2. Many people use the Internet regularly to book plane tickets.
3. Taipei has some of the tallest buildings in the world.
4. The UK hardly ever experiences serious earthquakes.
5. The average junior doctor works 60 hours a week.