Find the Surface Area cylinder (12)(4)

Math
h=12r=4
The surface area of a cylinder is equal to the sum of the areas of the bases each having an area of π⋅r2, plus the area of the side. The area of the side is equal to the area of a rectangle with length 2πr (the circumference of the base) times the height.
2π⋅(radius)2+2π⋅(radius)⋅(height)
Substitute the values of the radius r=4 and height h=12 into the formula. Pi π is approximately equal to 3.14.
2(π)(4)2+2(π)(4)(12)
Simplify each term.
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Raise 4 to the power of 2.
2π⋅16+2(π)(4)(12)
Multiply 16 by 2.
32π+2(π)(4)(12)
Multiply 4 by 2.
32π+8π⋅12
Multiply 12 by 8.
32π+96π
32π+96π
Add 32π and 96π.
128π
The result can be shown in multiple forms.
Exact Form:
128π
Decimal Form:
402.12385965…
Find the Surface Area cylinder (12)(4)

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