The surface area of a sphere with a diameter of 12 units is:
A) 427.0 units squared.
B) 452.2 units squared.
C) 703.4 units squared.
D) 866.6 units squared
im pretty sure its B, but just need a confirmation
SAsphere = 4 pi (radius)^2 = 4 pi (6)^2 = 4 pi (36) = 144 pi units^2 ≈
452.2 units^2
GOOD JOB !!!!
+252 
