What unit did Eratosthenes use to measure the Earth's circumference?
AStadia
BKilometers
CMiles
DNautical miles
Answer:
A. Stadia
Read Explanation:
Eratosthenes was the first to determine the circumference of the Earth based solely on the angle of sunlight.
He calculated it as 250,000 stadia. A stadia is a unit used to measure distance.
Eratosthenes was also the first to use the word "geography."
