The Circumference of earth was determined by:
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Answer:
Eratosthenes
Explanation:
Eratosthenes then measured the angle of a shadow cast by a stick at noon on the summer solstice in Alexandria, and found it made an angle of about 7.2 degrees, or about 1/50 of a complete circle. He realized that if he knew the distance from Alexandria to Syene, he could easily calculate the circumference of Earth.
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Answer:
The Circumference of earth was determined by Eratosthenes.
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