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The inside of a water bottle is a cylinder with diameter 6 cm. It is filled with water to depth of 18 cm. What is the volume of the water in the bottle, rounded to the nearest whole number?

Answer :

[tex]V=\pi\cdot r^2\cdot h=\pi\cdot3^2\cdot18=162\cdot\pi\approx509[/tex]

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