Abandoned where? if it’s in China I think it was in 2001
Answer: If the sin 30° = 0.5, then the cos 60° = 0.5 (same as 1/2)
Answer:Ancient Greeks had a lot of time on their hands when they were not involved in wars. They had to time to think about and observe the universe and everything surrounding them. As such, ancient Greek scientists made significant discoveries in numerous fields such as geometry, astronomy, mathematics and medicine.
Explanation:
How many do you need? because there is more then one.
