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The mean radius of earth is 6371 kilometers and the the mean radius of earth's moon is 1737.5 kilometers. What is is the approximate difference in the mean circumferences , in kilometers , of the earth's and earth's moon ? Round your answer to the nearest tenth of a kilometer

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The circumference is calculated through the equation,
                                C = 2πr
where C is circumference and r is radius.

Earth: 
                            C = 2π(6371 km)
                                = 40030.17 km

Moon:
                            C = 2π(1737.5 km)
                               = 10917.03 km
The difference between the two circumferences is approximately 29113.13 km.


swishstack

Answer:

We calculate for the circumferences of Earth and moon by using the equation,

                               C = 2πr

For Earth,

                               C = 2π(6371 km) = 40030.2 km

For Moon,

                              C = 2π(1737.5 km) = 10917.0 km

The difference between the two circumferences is 29113.2 km approximately.

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