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05-03-2017
Mathematics

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find the surface area of a cylinder to the nearest tenth square of a unit use 3.14 pie
PLEASE I NEED HELP BAD

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rarrininger rarrininger

05-03-2017

A=2πrh + 2πr²
A = 2 (3.14)(3)(18.2) + 2(3.14)(3)²
A= 342.888+ 2(3.14)(9)
A= 342.888 + 56.52
A = 399.408 units²

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