## School_Island_sad_face 3 years ago 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

you have to click the zoom button to see the picture

3. blockcolder

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

but how do you find the volume of the cone?

5. blockcolder

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

how do I find the base?

7. blockcolder

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

oh, ok I thought you had to do something else

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

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

11. blockcolder

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.

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

14. blockcolder

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