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.
Substitute the values of the radius r=4 and height h=12 into the formula. Pi π is approximately equal to 3.14.
Simplify each term.
Raise 4 to the power of 2.
Multiply 16 by 2.
Multiply 4 by 2.
Multiply 12 by 8.
Add 32π and 96π.
The result can be shown in multiple forms.
Find the Surface Area cylinder (12)(4)