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Mathematics, 21.10.2019 18:00 keshaayro1618

Earth’s surface is approximately 70% water. there is no water on the surface of mars, and its diameter is roughly
half of earth’s diameter. assume both planets are spherical. the radius of earth is approximately 4,000 miles.
the surface area of a sphere is given by the formula = , where is the radius of the sphere. which has
more land mass, earth or mars? use scientific notation in your

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