To find volume $ V $ use formula:
$$ V = h ^{ 2 } \cdot r \cdot \pi$$After substituting $r = 26\, \text{cm}$ and $h = 64.5\, \text{cm}$ we have:
$$ V = 64.5\, \text{cm} ^{ 2 } \cdot 26\, \text{cm} \cdot \pi$$$$ V = 4160.25\, \text{cm}^2 \cdot 26\, \text{cm} \cdot \pi $$$$ V = 108166.5\pi\, \text{cm}^3 $$