STEP 1: Transform all variables to millimeters.

$$ d = 200\, \text{mm} $$$$ h = 60\, \text{cm} = 60 \cdot \left( 10 \text{ mm}\right) = 600\, \text{mm} $$

STEP 2: find radius $ r $

To find radius $ r $ use formula:

$$ d = 2 \cdot r $$

After substituting $d = 200\, \text{mm}$ we have:

$$ 200\, \text{mm} = 2 \cdot r $$ $$ r = \dfrac{ 200\, \text{mm} }{ 2 } $$ $$ r = 100\, \text{mm} $$

STEP 3: find volume $ V $

To find volume $ V $ use formula:

$$ V = h ^{ 2 } \cdot r \cdot \pi$$

After substituting $r = 100\, \text{mm}$ and $h = 600\, \text{mm}$ we have:

$$ V = 600\, \text{mm} ^{ 2 } \cdot 100\, \text{mm} \cdot \pi$$$$ V = 360000\, \text{mm}^2 \cdot 100\, \text{mm} \cdot \pi $$$$ V = 36000000\pi\, \text{mm}^3 $$

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