a closed cylindrical tank of radius 7m and height 3m is made from a sheet of metal how much sheet of metal is required
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Answered by
42
Given
Radius of cylinder = 7m
Height of cylinder = 3m
Total Surface area of cylinder = 2πr(h+r) = 2*22/7*7(7+3) = 440m²
Hence, 440m² of metal sheet is used.
Radius of cylinder = 7m
Height of cylinder = 3m
Total Surface area of cylinder = 2πr(h+r) = 2*22/7*7(7+3) = 440m²
Hence, 440m² of metal sheet is used.
bril:
you should use surface area not a volume because here metal sheet is given
sry
I edited my answer
check it
okk
it ok
Answered by
26
The sheet required=total surface area of the cylinder
=2πr(r+h)
=2(22/7)(7)(7+3)
=44(10)
=440m^
Hence,440m^sheet is used.
=2πr(r+h)
=2(22/7)(7)(7+3)
=44(10)
=440m^
Hence,440m^sheet is used.
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