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=10 and height h=20 into the formula. Pi π is approximately equal to 3.14.
Simplify each term.
Raise 10 to the power of 2.
Multiply 100 by 2.
Multiply 10 by 2.
Multiply 20 by 20.
Add 200π and 400π.
The result can be shown in multiple forms.
Find the Surface Area cylinder (20)(10)