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Question 3 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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Answer» Question 3 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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