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 22/7 for pi.

19,008 ft3

19,461 ft3

6,336 ft3

453 ft3

Answer 1

Sum together half of a sphere for the top part, with a cylinder for the bottom part. That's all there is to it :-)

Do you know the formulas for a cylinder and a sphere?
h = 168 ft
r = 6 ft

Answer 2

no i don't

Answer 3

\[\large V_{sphere} = \frac{4 \pi r ^3}{3}\]
\[\large V_{cylinder} = \pi r^2 h\]
\[V_{total} = \frac{V_{sphere}}{2} + V_{cylinder}\]

Answer 4

Can you solve it now? ;-D

Answer 5

no i'm sorry i'm completely lost :-(

Answer 6

r = radius (both for the cylinder and sphere) , h = height of the cylinder

Separate the curved, hemispherical top from the cylinder under it. You'll just add volume the two shapes together. What are you confused on specifically?

Answer 7

i'm just naturally confused on everything that has to do with maths you have to talk to me like a toddler and tell mi step by step

Answer 8

Can you identify the radius in the drawing? And the height?

Answer 9

the radius for the entire drawing?

Answer 10

There's only one radius, yes. It works for both the sphere and cylinder, like I said.

Answer 11

is it 6 ft?

Answer 12

Yes...

Answer 13

And height is "h", which is?

Answer 14

168 ft

Answer 15

2/3*22/7*6*6*6 + 1/3*@22/7*6*6*168 = ............

Answer 16

Ok, now scroll up and put r & h into those two equations for the Volume of a Sphere and Cylinder. Substitute, replacing r with "(6 ft)", and replacing h with "(168 ft)".

Answer 17

ok

Answer 18

find the volume of given figure