Question

how would you calculate the total radius of earth in layer and hence calculate its total diameter diameter show your working​

Answer 1

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The dimensions of the Earth was first measured by Greek philosopher Eratosthnes in 200 B.C. by using simple geometric methods. ... To get the radius of the earth, he divided the earth’s circumference by 2 and pi. He got the radius to be 6,366 km. The radius of the Earth using satellites is 6378 km.