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vlada-n [284]
3 years ago
11

FIND THE SURFACE AREA HELP ASAP GET BRAINLISTS

Mathematics
1 answer:
3241004551 [841]3 years ago
4 0

Answer:

\large\boxed{a.\ 7200\pi\ mm^2}

Step-by-step explanation:

The formula of a surface area of a cylinder:

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

r - radius

H - height

We have r = 40mm and H = 50mm. Substitute:

S.A.=2\pi(40)(40+50)=80\pi(90)=7200\pi\ mm^2

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