Question

A metal pipe is 82cm long. The inner diameter is 12cm and outer diameter is 16cm. find its total surface area.​

Answer 1

Answer:

2πr(r+h)

44*4(110)

176*110

1830cm²

Answer 2

Answer:

this type of question

the formula is given

volume of the material =volume of outer cylinder -

volume of inner cylinder

Step-by-step explanation:

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