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CBSE Class 9 Answered

The outer and inner diameters of a cylindrical wooden pipe are28cm and 24 cm respectively. Find the mass of pipe of length 35 cm if 1 cu. cm of wood has a mass of 0.6 gm
Asked by | 30 Jan, 2012, 09:11: PM
answered-by-expert Expert Answer
Inner radius = 12 cm Outer radius = 14 cm Length = 35 cm Volume of pipe = pi (14^2 - 12^2) x 35 = 5720 Mass of 1 cu cm wood = 0.6 gm So mass of 5720 cu cm wood = 5720 x 0.6 gm = 3.432 kg
Answered by | 30 Jan, 2012, 10:39: PM

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