\"\"

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Volume of the cone is \"\". 

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Where r is the radius and h is the height of the cone respectively.

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\"\"

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\"\"

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\"\"                    (Substitute: r = 3x, c =\"\")

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First operation is evaluating powers.

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\"\"                    (Evaluate the power: \"\")

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\"\"

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Next operation is multiplication.

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\"\"        (Multiply: \"\")

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\"\"                   (Multiply: \"\") \"\"

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The volume of the cone is \"\".