If Earth's radius was larger by 1 meter, how much longer would its equator be?

by approx 6 meters

by approx 6 kilometers

by approx 60 kilometers

by approx 6000 kilometers

For each circle, the length of the circumference is c=2πr. Hence, if a radius grows by 1 meter, the circumference grows by 2 π meters - no matter what the initial value of radius was.

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