Question

which astronaut declared that the earth is sheperical​

Answer 1

Under the assumption that the Sun is very far away, the ancient Greek geographer Eratosthenes performed an experiment using the differences in the observed angle of the Sun from two different locations to calculate the circumference of the Earth.

ANSWER PROVIDED BY GAUTHMATH.

Answer 2

Under the assumption that the Sun is very far away, the ancient Greek geographer Eratosthenes performed an experiment using the differences in the observed angle of the Sun from two different locations to calculate the circumference of the Earth

PLS MARK BRAINLIEST