Surface area = 4*pi*12 = 12.566 square units to 3 decimal places
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Surface area of a sphere = 4*pi*radius2 radius = diameter/2
You divide the diameter by 2, to get the radius. Then you use the formula for the surface area of a sphere. Surface area of a sphere = 4*pi*radius^2
Surface area of a sphere in square units = 4*pi*radius^2
Surface area of the sphere: 4*pi*2 squared = 50.265 square inches to 3 decimal places
First divide the diameter by 2 to give the radius and use the formula:- Surface area of a sphere = 4*pi*radius2 measured in square units