Surface Area Formula Sheet - (r is radius of circle) surface area of a cylinder = 2 pi r 2 + 2 pi r h. Web surface area of a sphere = 4 pi r 2. (h is the height of the.
Web surface area of a sphere = 4 pi r 2. (h is the height of the. (r is radius of circle) surface area of a cylinder = 2 pi r 2 + 2 pi r h.