Relationship - radius

Calculate the volume of the cylinder if the radius of the base is 3 cm, and the relationship between the radius of the base and the height of the cylinder is v = 3r

Correct answer:

V =  254.469 cm³

Step-by-step explanation:

$$\begin{gathered} r=3\text{cm} \\ v=3\cdot r=3\cdot 3=9\text{cm} \\ V=\pi \cdot r^2\cdot v=3.1416\cdot 3^2\cdot 9=254.469{\text{cm}}^3 \end{gathered}$$

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