[tex] \huge\boxed{♧ \: \mathfrak{ \underline{Answer࿐} ♧}}[/tex]
we know,
[tex] \boxed{volume = \pi r {}^{2} h}[/tex]
so, volume of each pillar :
[tex]\longmapsto 3.14 \times 1.7 \times 1.7 \times 12[/tex]
[tex]\longmapsto108.89 \: m {}^{3} [/tex]
since, there are total 26 pillars,
total volume :
[tex]\longmapsto108.89 \times 26[/tex]
[tex]\longmapsto2831.14 \: \: m {}^{3} [/tex]
