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Can you find the outer and inner radii of the tube ?

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The difference between outside and inside surface areas of a tube 28 cm long in 88 cm^2 .
The total surface area of the tube is 1254 cm^2 .
Can you find the outer and inner radii of the tube ?

posted Jan 7, 2016 by Varun Kumar

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1 Answer

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Tube=Hollow cylinder
Outer area=A1 , Inner area=A2
simplify (i) & (ii)

R1=outer radii=3.813cm
R2=inner radii=3.313cm

answer Jan 7, 2016 by Jaikumar Bhatia

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