Image result for Identify the surface area of a sphere with a radius of 18 inches to the nearest tenth. Use 3.14 for π. 4,069.4 in2 8,134.2 in2 4,147.9 in2 16,201.4 in2
We can simply multiply the area of the great circle by four to find the surface area. The only thing to remember is that this only works with the great circle. It doesn't work with any other circles in the sphere. This is because any smaller circles in our sphere will not have the same radius