Sun November 11, 2012 By:

if the height and radius are in ratio 7:2 and the volume of cylinder is 704. then find the height.

Expert Reply
Sun November 11, 2012
Let us say radius is r and height is h
Then r/h = 2/7   or, r=2h/7  
Now volume of cylinder = ?r2h= 704
Put the values we get
(22/7)x(2h/7)2h= 704  
h3 = 704x73/22x4  
So, h = 14
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