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27 September, 12:34

The water tower shown below has a spherical reservoir (outlined in black) with measured diameter of 25.0 m. The reservoir is filled to 80.0% of its full capacity.

Smith house

Use the correct number of significant figures to indicate the volume of water in the spherical reservoir.

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  1. 27 September, 16:10
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    6,540m³ (or 6.50*10⁶ L)

    Explanation:

    Volume of a Sphere = (4/3) πr³ 80% of a quantity = [quantity]• (0.8)

    The volume of that sphere at 80% capacity is:

    [ (4/3) π (12.5m) ³]• (0.8) = 6,544.98 ... m³

    I may be wrong about the sig-figs, but I believe it is 3 due to the 12.5m ... so I'm rounding it to tens place to get the answer above.
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