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Well , i am not good in Geometry at all..but still i will give a try.

its asks the volume..so we must find out the radius of the cyclinder.Since the width is 6 ..the circumfernece should be 6 too..then find the radius.
6=2*pi*r..tf..(6/2*pi)=(2*pi*r/2*pi) = 3/pi=r......(1)
volume = pi*r^2 *h
so pi*3/pi*3/pi*8=72/pi
...
Geo makes me really mad _________________

One more question and we'll call it a night as far as cylinders are concerned.

A cylindrical storage tank containing the liquid chemical, ammonium xylenesulfonate, is being filled at a rate of pi cubic meters per second. Structural engineers are also working on the tank and they are surveying the dimensions of the tank. The tank stands 10 meters tall. If the tank was empty before being filled and if took 13.5 minutes to fill then what is the diameter of the tank?

a) 8 meters
b) 9 meters
c)12 meters
d)16 meters
e)18 meters

One more question and we'll call it a night as far as cylinders are concerned.

A cylindrical storage tank containing the liquid chemical, ammonium xylenesulfonate, is being filled at a rate of pi cubic meters per second. Structural engineers are also working on the tank and they are surveying the dimensions of the tank. The tank stands 10 meters tall. If the tank was empty before being filled and if took 13.5 minutes to fill then what is the diameter of the tank?

a) 8 meters b) 9 meters c)12 meters d)16 meters e)18 meters

hey, did you write this ques. if yes, where did you get "ammonium xylenesulfonate" ..?? interresting.