Posted by Simon on Tuesday, February 5, 2013 at 12:41pm.
A cylindrical tube is open at both ends.the internal diameter tube 10.4cm and its length is 25cm. If the thickness of the tube 8mm everywhere,find the total surface of area of the tube.

Math  Steve, Tuesday, February 5, 2013 at 2:20pm
inner diameter is 10.4
outer diameter is 11.2
A = π(25)(10.4+11.2) = 540π

Math  Simon, Wednesday, February 6, 2013 at 4:16am
Bt its ans is 1816.32cm^2

Math  Simon, Wednesday, February 6, 2013 at 4:34am
Plz help me

Math  vibhav dip, Sunday, July 10, 2016 at 12:31pm
TOTAL SURFACE AREA =
EXTERNAL CURVED SURFACE AREA INTERNAL CURVED SURFACE AREA
in AREA OF BOTH CROSS SECTION
=2¦ÐRh 2¦Ðrh 2¦Ð{R square  r square)
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