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?

twenty-seven thousand, two hundred thirteen cubic feet of corn

twenty-five thousand, one hundred twenty cubic feet of corn

thirty-one thousand, four hundred cubic feet of corn

twenty-three thousand five hundred fifty cubic feet of corn

Answer 1

you have to click the zoom button to see the picture

Answer 2

So the silo is composed of two parts: a cylinder and a cone. Find the volume of each, then add.

Answer 3

but how do you find the volume of the cone?

Answer 4

\(\Large V_{\text{cone}}=\frac{1}{3}Bh\) where B is the area of the base and h is the height from the apex to the base.

Answer 5

how do I find the base?

Answer 6

The base of the cone in this case is a circle with diameter 20.

Answer 7

oh, ok I thought you had to do something else

Answer 8

\[1/3_{20}\times20\] so is that how you find the answer? to the cone?

Answer 9

I am not getting the right answers... could you work the problem out?

Answer 10

I think you meant this:
\[\frac{1}{3}(10)^2(20)\pi=\frac{2000}{3}\pi\]
because the radius of the circle is 10.
The V of the cylinder is \(\large (10)^2\pi(80)=8000\pi\)
Add them up and you get \(\Large \frac{26000}{3}\pi\) or if you need a decimal, plug this in your calculator.

Answer 11

that isn't any of the answers... :( I am going to cry, why can't i figure this stupid question out!

Answer 12

Please help... :''''''(

Answer 13

The closest answer is the 27213, so I'd just take that answer.

Answer 14

okkkk.... :'( sniff sniiffff