Accurately estimate the size of earth

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Reference no: EM13194456

Eratosthenes was the first person to accurately estimate the size of Earth. He accomplished this feat by ____________.

A. sailing around the world and estimating his average rate of travel
B. comparing the length of an Earth day with the distance between Earth and the Sun
C. measuring the severity of the greatest earthquakes
D. observing shadows simultaneously cast at

Reference no: EM13194456

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