A grain silo is shown below.

What is the volume of grain that could completely fill this silo rounded to the nearest whole number? Use for pi.

Question

A grain silo is shown below.
 

 
What is the volume of grain that could completely fill this silo rounded to the nearest whole number? Use  for pi.

anonymous · Answer

how do i put the picture on here?

saifoo.khan · Answer

Use the "attach file" option.

btaylor · Answer

Even though your pic didn't post (try replying again),
$$V =\pi r^{2}h$$

anonymous · Answer

attachment

btaylor · Answer

OK then, to add half the sphere:
$$V = 2/3 pi r^{3}$$

anonymous · Answer

ok how bout the rest of it

saifoo.khan · Answer

volume of cylinder + volume of semi-circle

anonymous · Answer

can you substitute my numbers in  the equation

saifoo.khan · Answer

semi sphere*

saifoo.khan · Answer

do you know the formula for each? @helpppleaseee7

anonymous · Answer

no i dont

btaylor · Answer

We just gave them to you.
$$V = \pi r^{2}h+ 2/3 \pi r^{3}$$

anonymous · Answer

can you substitute the numbers from my problem into there?

anonymous · Answer

@BTaylor and @saifoo.khan

btaylor · Answer

$$V=168\times6^{2} \pi +2/3\times6^{3}\pi$$
$$V=6048\pi + 144\pi = 6192\pi$$
$$6192\pi = 19453 ft^{3}$$

anonymous · Answer

thanks man i understand now!