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Mathematics 12 Online
OpenStudy (anonymous):

Medal!!! If u help me on a few questios

OpenStudy (anonymous):

Find the volume of the circular cylinder.

OpenStudy (anonymous):

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hartnn (hartnn):

Volume of cylinder \(V = \pi r^2h\) r = radius of base h = height

hartnn (hartnn):

that 2 in given is radius or the diameter of base ??

OpenStudy (anonymous):

IDK

hartnn (hartnn):

then, do u have options/choices ?

OpenStudy (anonymous):

YES

hartnn (hartnn):

can you please post them ?

hartnn (hartnn):

ok, so 2in is the radius plug in r= 2, h = 12 in that formula keep pi as pi only what do u get ?

OpenStudy (anonymous):

would it be 48 pie in3 ???

hartnn (hartnn):

thats correct! :)

OpenStudy (anonymous):

really I just guessed

hartnn (hartnn):

V= pi * (2^2)*12 = pi*4*12 = 48pi now you know how :)

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