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19 \(m\) tall circus tent is in the form of a cone surmounted on a cylinder that has a uniform radius of 2.1 \(m\). If the height of the conical part is \(5.7\) \(m\) , then find the volume of air in the tent.
 
circus tent.jpg
 
Answer:
 
The volume of air \(=\)  \(m^3\)
 
[Note: Enter the answer up to two decimal  places.]
Reference:
https://pixabay.com/photos/circus-tent-circus-tent-red-meadow-366142/