What is the surface area of a sphere with a radius of 16 units?

Answer:D. 1024 π units²Step-by-step explanation:We have sphere, with a radius of 16 units.The surface area of a sphere is given by the following formula:Surface Area of a sphere = 4 π r²We already know r, which is 16.  So,SA = 4 * π * 16² = 256 * 4 * π  = 1024 π  units²That's enough for our answer, which matches answer D from the list.If we want to have an actual number.... we would have to multiply 1024 by π.SA = 1024 * π = 3217 units²