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from a metal sheet. How many square lietes un the siteet are required for
A metal pipe is $$77 \mathrm{cm}$$ long. The inner diameter of a cross
section is $$4 \mathrm{cm}$$, the outer diameter being $$4.4 \mathrm{cm}$$
(see Fig. 13.11 ). Find its
(1) inner curved surface area,
(ii) outer curved surface area,
(iii) total surface area.
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Q1
A metal pipe is 77cm long. The inner diameter of a cross section is 4cm, the outer diameter being 4.4cm. Find its
(i) Inner curved surface area,
(ii) Outer curved surface area,
(iii) Total surface area.
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Q2
A metal pipe is 77 cm long. The inner diameter of a cross-section is 4 cm, the outer diameter being 4.4 cm, then find its inner curved surface area.
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Q3
A metal pipe is 77 cm long. The inner diameter of a cross section is 4 cm, the outer diameter being 4.4 cm.
(i) Inner curved surface area,
(ii) Outer curved surface area,
(iii) Total surface area. 