What is the surface area of a sphere with a diameter of 12 centimeters? (Use 3.14 for π.)

The answer should be 452.16

because the formula for a sphere is 4 pi r ²

so 4 x 3.14 = is 12.56

and the radius of your sphere would be 6 because 12/2

and 6 ² x 12.56 or 36 x 12.56 would equal 452.16

But for a more accurate the answer on google is 452.39 but it isn't always right.