Why is curved surface area being used rather than total surface area in this question? Pls answer I'll mark you brainliest.
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HAI DEAR FRD,
Curved surface area is used rather than total surface area because painting is done only over the surface of the pipe.We don't consider the open sides of the pipe.
chandanikishore99:
But it's not mentioned in the question that the top and bottom is open
if it is having two openings at top and bottom only it is called a pipe.otherwise it is called as a cylinder or something.
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Answered by
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Because pipe always has no end they are hallow inside and there is no cylindrical circle and whenever we paint we paint it from outside. therefore, curved surface area is used please mark me as brainliest and if you want more explanation or any doubts in it tell me in comments.
Thank u
Sorry
i could not mark u as brainliest
welcome
no it's Ok
bit please mark me as brainliest next time
ya k
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