Question

.***Pictured here is a grain silo on a farm. If it can be filled to the very top with corn, about how much corn can this silo hold?*
~picture in comments~

Answer 1

total volume of corn = volume of the cylinder + vol. of cone
= pi r^2 h + (1/3) pi r^2 H

where r = radius of circular part of cylinder, h = height of cylinder and H = height of cone

Answer 2

can you plug in these values (using numbers in diagram) and do the calculation?

Answer 3

i'll start you off: r = half of 20 = 10 ft