Question

3.
13.4
Sof
A metal pipe is 77 cm long. The inner diameter of a cross
section is 4 cm, the outer diameter being 4.4 cm
(see Fig. 13.11). Find its
(1) inner curved surface area,
(ii) outer curved surface area,
total surface area.
suc
pri
th
Copy
Fig. 13.11​

Answer 1

Answer:

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