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.

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Solution

Inner radius of cylindrical pipe

Outer radius of cylindrical pipe

Height (h) of cylindrical pipe = Length of cylindrical pipe = 77 cm

(i) CSA of inner surface of pipe

(ii) CSA of outer surface of pipe

(iii) Total surface area of pipe = CSA of inner surface + CSA of outer surface + Area of both circular ends of pipe

Therefore, the total surface area of the cylindrical pipe is 2038.08 cm².

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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.

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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 figure). Find its
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(ii) Outer curved surface area
(iii) Total surface area

A metal pipe is $77 c m$ long .the inner diameter of a cross section is $4 c m$ , the outer diameter being $4.4 c m$ . find its total surface area.

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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.

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.