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IRINA_888 [86]
3 years ago
7

I dont know how to do this

Mathematics
1 answer:
dimaraw [331]3 years ago
4 0
The formula of a surface area of a cylinder:
S.A.=2\pi r(r+H)

We have:
r=1m;\ H=10m
substitute:
S.A.=2\pi\cdot1\cdot(1+10)=2\pi\cdot11=22\pi\ m^2\approx22\cdot3.14=69.08\ m^2

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