Question

Q1. Which one of the following radius
of the earth?​

Answer 1

For the Earth, the authalic radius is 6,371.0072 km (3,958.7603 mi).

1 R⊕ in: is equal to

SI base unit: 6.3781×106 m

English units: 3,950 to 3,963 mi

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Answer 2

Answer:

Earth radius is the distance from the center of Earth to a point on its surface. Its value ranges from 6,378 km (3,963 mi) at the equator to 6,357 km (3,950 mi) at a pole