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Mathematics 21 Online
OpenStudy (anonymous):

I need help with 26 please

OpenStudy (anonymous):

OpenStudy (shubhamsrg):

have you seen "special 26" ? nice movie

mathslover (mathslover):

Its a great movie...

OpenStudy (anonymous):

Yes. But, it would be pretty nice if you help me with this.

OpenStudy (anonymous):

I love that movie

OpenStudy (shubhamsrg):

finding volume ? I am assuming ?

OpenStudy (shubhamsrg):

yeah, climax ka bhi climax !

OpenStudy (anonymous):

Yes determine the volume of the shaded region

OpenStudy (shubhamsrg):

formula for volume of cylinder = ?

OpenStudy (anonymous):

Idk

OpenStudy (shubhamsrg):

oo teri! :O

OpenStudy (anonymous):

Bhai Saab help ki jiye meri na tum

OpenStudy (shubhamsrg):

what was q.25 ? wasn't it a cylinder too ?

OpenStudy (anonymous):

I am doing question 26

OpenStudy (shubhamsrg):

why not 25 ?

mathslover (mathslover):

Oh abusive words are being used. Sid, please don't use abusive words here.

OpenStudy (shubhamsrg):

arre bologe ?

OpenStudy (mertsj):

The volume of a cylinder is the area of the circle which is the base, multiplied by the height. That is: \[V=\pi r^2h\]

OpenStudy (mertsj):

Find the volume of the big cylinder whose radius is 1.5. Find the volume of the little cylinder whose radius is 0.5 Subtract the second answer from the first.

OpenStudy (anonymous):

I got 1

OpenStudy (mertsj):

Volume of big cylinder = pi (2.25)(5)=11.25pi Volume of little cylinder = pi(.25)(5)=1.25 pi 11.25pi-1.25pi=10pi=31.4

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