Given,
Height of each conical part 
Stature of chamber
![\[=\text{ }12{-}2{-}{2}\text{ }=\text{ }8\text{ }cm\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-937d9733c09ee2d36cdd469a20cc4efe_l3.png "Rendered by QuickLaTeX.com")
Span = 1.5 cm
Stature of cone = 2 cm
Presently, the all out volume of the air contained will be = Volume of cylinder+2×(Volume of cone)
![\[\therefore Total\text{ }volume\text{ }=\pi r^2h+[2\times (\pi r^2h\text{ })]\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-c1b7dbec43c2897ff81d221922447afe_l3.png "Rendered by QuickLaTeX.com")
![\[=\text{ }18\text{ }\pi +2\left( 1.5\text{ }\pi \right)\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-fc5a54868f70e6ec77dc22d6ce04f21e_l3.png "Rendered by QuickLaTeX.com")
![\[=\text{ }66\text{ }cm^3.\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-a24bb445595e8d0b03a2634b92c1f2e0_l3.png "Rendered by QuickLaTeX.com")
Rachel, an engineering student, was asked to make a model shaped like a cylinder with two cones attached at its two ends by using a thin aluminum sheet. The diameter of the model is 3 cm and its length is 12 cm. If each cone has a height of 2 cm, find the volume of air contained in the model that Rachel made. (Assume the outer and inner dimensions of the model to be nearly the same.)
Rachel, an engineering student, was asked to make a model shaped like a cylinder with two cones attached at its two ends by using a thin aluminum sheet. The diameter of the model is 3 cm and its length is 12 cm. If each cone has a height of 2 cm, find the volume of air contained in the model that Rachel made. (Assume the outer and inner dimensions of the model to be nearly the same.)