Question 956509
The edge, a, of a hexagon=1/2 the diameter=0.225m; h=height=14m
The area of a hexagonal column=sum of its faces=6ah=6(0.225m)(14m)=18.9 sq m
and the area of its top:
{{{(3sqrt(3)/2)a^2=(3sqrt(3)/2)(0.225^2)}}}={{{0.132m^2}}}
So surface area of an average column is 18.9 sq m+0.132 sq m=19.032 square meters.