Question 1113072
 a statical which may have seen hanging in the Endless caverns in Virginis is approximately in the form of a cone 4 ft. long with a base 18 in. in cubic ft.
:
The radius 18/2 = 9 in which is .75 ft
the volume
V = {{{1/3}}}{{{pi*.75^2*4}}}
V = 2.356 cu/ft
:
V =  Find the weight of the stalactite? 
In order to find this, we need to know the density of the material these things are made of. (pounds per cu ft)