If Eratosthenes had measured the angle between the Sun and the zenith to be 5 degrees, the Earth's circumferen?
a. 250, 000 stadia
b. 200, 000 stadia
c. 5, 000 stadia
d. 360,000 stadia
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a. 250, 000 stadia
b. 200, 000 stadia
c. 5, 000 stadia
d. 360,000 stadia
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Answers & Comments
Verified answer
You've missed out part of the question. It's necessary to know how many stadia represent 5 degrees on the Earth's surface. In other words, how many stadia are there between the points where the Sun is overhead and where it has a zenith angle of 5 degrees. 360 degrees make a circle so multiply that number of stadia by 360/5 or 72.
The answer is B.