Question

the difference between outside and inside curved surface area of a cylindrical metallic pipe 28 cm long is 88 centimetre square if the pipe is made of 198 centimetre cube of metal find the thickness of the pipe

Answer 1

Solution:-

Let the outer radius and the inner radius of the cylindrical metallic pipe be 'R' and 'r' respectively.

The height of the pipe = 28 cm (Given)

The difference between the outer and inner curved surface area is 88 cm² (Given)

Therefore,

⇒ 2*πRh = 2*πrh = 88 cm²
⇒ 2*22/7*R*28 - 2*22/7*r*28 = 88
⇒ 2*22/7*28(R - r) = 88
⇒ 1232/7(R - r) = 88
⇒ 176(R - r) = 88
⇒ (R - r) = 88/176
⇒ R - r = 1/2
Or, R - r = 0.5 cm

So, the thickness of the metallic pipe is 0.5 cm.
Answer

Answer 2

Step-by-step explanation:

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