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Question
A metal pipe is 77cm long. The inner diameter of a cross section is 4 cm, the outer diameter being 4.4 cm. Find its outer curved surface area.
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Solution
There is a inner Cylinder and Outer Cylinder.
Outer Radius = 2.2 cm = R
Height of the pipe = 77 cm = h
Outer Curved Surface area of the pipe = 2 x ∏ x R x h = 2 x 3.142 x 2.2 x 77
= 1064.5 cm2
There is a inner Cylinder and Outer Cylinder.
Outer Radius = 2.2 cm = R
Height of the pipe = 77 cm = h
Outer Curved Surface area of the pipe = 2 x ∏ x R x h
= 2 x 3.142 x 2.2 x 77
= 1064.5 cm2
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