I dont know how to do this

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asked May 5, 2019 6.2k views

1 vote

I dont know how to do this

Mathematics
high-school

Khanghoang asked

by Khanghoang

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1 Answer

5 votes

The formula of a surface area of a cylinder:

$S.A.=2\pi r(r+H)$

We have:

$r=1m;\ H=10m$
substitute:

$S.A.=2\pi\cdot1\cdot(1+10)=2\pi\cdot11=22\pi\ m^2\approx22\cdot3.14=69.08\ m^2$

Hitesh Somani answered May 9, 2019

by Hitesh Somani

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