Acompany that manufactures storage bins for grains made a drawing of a
silo. the silo has a conical base, as shown below:
which of the following could be used to calculate the total volume of grains
that can be stored in the silo? (6 points)

n(6ft)^2(2ft)+1/3n(10.5ft - 6ft)^2(2ft)

n(2t)^2(6ft)+1/3n(10.5ft - 6ft)^2(2ft)

n(6ft)^2(2ft)+1/3n(2ft)^2(10.5ft - 6ft)

n(2ft)^2(6ft)+1/3n(2ft)^2(10.5ft - 6ft)