A METAL PIPE IS 77 CM LONG.THE INNER DIAMETER OF A GROSS SECTION IS 4 CM, OUTER DIAMETER BEING 44 CM .FIND ITS INNER CURVED SURFACE AREA .
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Step-by-step explanation:
A metal pipe is 77 cm long.
that is it's height(h) =77cm
inner diameter=4 cm
inner radius=inner diameter/2=4/2=2 cm
inner curved surface area=2πrh=2×22/7×2 cm ×77 cm
=968 cm²
Answered by
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Answer:
968cm
Step-by-step explanation:
formula of curved surface area of cylinder is 2×22/7×height ×inner radius
2×22/7×77×2
968cm
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