The equator

Calculate the length of the equator. Calculate a radius of 6378 km. Round to the nearest thousand. - Procedure and calculation

Correct result:

x =  40000 km

Solution:

r=6378 km  x1=2π⋅ r=2⋅ 3.1416⋅ 6378≐40074.1559 km  x=[x1,−3]=[40074.1559,−3]=40000 km

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