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Maths Puzzle
The radius of a cylinder is twice its height. If its total surface area is 192 Pi. sq. cm. find its height.
Read Solution (Total 2)
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- h=3.6
frm gvn,r^2*h=192
(2h)^2*h=192
=>h=3.6 - 11 years agoHelpfull: Yes(0) No(0)
- given r=2h
t.s.a=192;2pier(r+h)=192
2*3.14*(2h+h)=192
h=10.19
- 11 years agoHelpfull: Yes(0) No(0)
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