1.

A metal pipe is 77 cm long. The inner diameter of a cross-section is 4 cm, the outer diameter being 4.4 cm.Find its,(i) Inner curved surface area(ii) Outer curved surface area(iii) Total surface area. [Assume π=227]

Answer» A metal pipe is 77 cm long. The inner diameter of a cross-section is 4 cm, the outer diameter being 4.4 cm.



Find its,

(i) Inner curved surface area

(ii) Outer curved surface area

(iii) Total surface area. [Assume π=227]


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