josephfieldsjr
Answered

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Determine the surface area of a cylinder if the diameter is 2 inches and the height is 21 inches. Round your answer to the nearest hundredth. (Use )

Sagot :

MidnightShowers

Answer:

heya! ^^

given ,

★ diameter of cylinder = 2 inches

[tex]\therefore \: radius = \frac{2}{2} = 1 \: inch \\ [/tex]

★ height of cylinder = 21 inches

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[tex]surface \: area \: of \: cylinder = 2\pi \: r(r + h) \\ \\ \dashrightarrow \: 2 \times 3.14 \times 1(1 + 21) \\ \\ \dashrightarrow \: 2 \times 3.14 \times 22 \\ \\ \dashrightarrow \: 3.14 \times 44 \\ \\ \dashrightarrow \: 138.16 \: inches {}^{2} [/tex]

hope helpful :D

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