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2 years ago

18 cm

Mathematics

1 answer:

attashe74 [19]2 years ago

5 0

Answer

720π cm²

Step-by-step explanation:

Surface area of cylinder

A=2πr(s+r)

for r=12cm, s=18cm

A= 2π×12(12+18)

=24π×30

=720π

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