Remember that the formula for the surface area of a sphere is \(SA=4 \pi r ^{2}\) . Substitute the given surface area to solve: \(663,267=4 \pi r ^{2}\). Divide by 4 on both sides: \(165,816.75= \pi r ^{2}\). Divide by pi on both sides: \(52781.11= r ^{2}\). Square root on both sides to find the radius: \(229.741= r\)
