Question

3. A metal pipe is 77 cm long. The inner diameter of a cross section is 4 cm, the outer diameter being 4.8 cm.
Find its:
o
(i) inner curved surface area,
(ii) outer curved surface area,
(iii) total surface area.​

Answer 1

inner curved surface area

According to the question inner diameter is 4 cm,

then....

Refer above attachment

hope it helps you

Answer 2

Hnji.... xD

Zeenia here ✌

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