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Volume of a sphere

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The volume of a sphere can be found by the formula:
**natttt***Posted on 2011-01-21 17:46:58*

Vol = 4/3 * pi * r³

One example: assuming that the Earth is spherical and its radius in Ecuador is 6378 km, we can calculate the volume of our planet with the application of this formula:

Vol = 4/3 * pi * r³

Vol = 4/3 * 3.14 * (6 378 km)³

Vol = 4/3 * 3.14 * 2.59 * 10¹¹ km³

Vol = 1.086 * 10¹² km³

Other example: Find the volume of a sphere of radius 9.6 m, rounding your answer to two decimal places.

Vol = 4/3 * pi * r³

Vol = 4/3 * 3.14 * (9,6)³

Vol = 3705,97 m³

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