1.

Radius of the Earth is 6400 km and that ofMars is 4300000 m. Whose radius is biggerand by how much?​

Answer»

6400km = 6400 \times  {10}^{3}  \\  = 6400000m \\  \\ radius \:  \:  \: of \:  \: earth = 6400000m \\  \\ radius \:  \:  \: of \:  \:  \: mars \:  = 4300000m \\  \\ now \:  \\  \\ r1 - r2 = 6400000 - 4300000 \\  \\  = 2100000m



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