Math, asked by zanee811, 9 months ago

plz do ques 2...part a and b...step by step explanation

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Answered by rkvg70

0

Step-by-step explanation:

roller will be in the shape of cylinder

a.)=C.S.A OF CYLINDER+AREA OF ONE CIRCLE

=2πrh+πr^2

=(2*22/7*21*21)+(22/7*21*21)

=2769.48 + 1384.74

=4154.22cm^2

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