Multiple choice

The Chinese estimated the Earth’s circumference to be approximately 40,000 km

  1. False

  2. True
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Greek mathematician and geographer Eratosthenes is famous for first calculating the Earth's circumference around 240 B.C. using the angle of the sun at two different locations. While ancient Chinese mathematicians made many scientific advances, they did not calculate this specific value.

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