4 pi r squared July 8, 2019 16 32 64 128 4 pi r squared formula 4 pi r squared calculator 4 pi r squared divided by 3 4 pi r squared h 4 pi r squared equals 4 pi r squared divided by 2 Pi r squared divided by 4 4 pi squared r cubed 4 times pi r squared 4 x pi r squared Sa = 4 pi r squared = Area 4 pi r squared