A ball of diameter 20 cm fits exactly inside a cylindrical container, as shown below. A spherical ball fits exactly inside a cylinder so that all its sides touch the sides of the cylinder The maximum volume of liquid which can be poured into the cylindrical container when empty is ________ cm3.
@amistre64 @mathslover
@ganeshie8
\[V = \pi r ^{2}h\] V= Volume of a cylinder r=radius of the cylinder h=height of the cylinder
@Muddingirl First find volume of cylinder and then volume of spherical ball...Then tell us what you will you do next..@kausarsalley has already told us the formula for the volume of cylinder
Im sorry guys i don't know how...sorry
since the sphere fits exactly into the cylinder, the diameter of the sphere is equal to the diameter of the cylinder....so therefore the radius of the cylinder would be half o of the diameter.....and if you look carefully, you would realise the diameter of the sphere (if you view its diameter vertically) is equal to the height of the cylinder......
No problem.. @kausarsalley is explaining great..just keep following..:)
OK, @kausarsalley would the diameter be 20?
yes
ok...i got something
so the radius would be 10 right
@kausarsalley
yh that is right!
so you can now place your values in the formula and find the volume! :)
so it'd be: \[V=\pi 10^220\]
@kausarsalley
yh! you got it..
ok. i will work it out and tell you what i got! Thanks @kausarsalley
sure! and you are welcome...
ok i think i did something really wrong cause i got 636.94? @kausarsalley
yh...try it again
it got worse...6280? @kausarsalley sorry
if you want to leave your answer to 3 sig. figs. then what you got is right! the real answer is 6283.18....
OHH that makes sense!! THANKS SO MUCH!!! @kausarsalley
YOU ARE WELCOME!!!! :)
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