Answer:
second option, 2826
Step-by-step explanation:
formula for surface area of a sphere:
A = 4 pir^2
given: diameter = 30cm
radius: diameter / 2 -> 30 / 2 = 15cm
A = 4 pi(15)^2
A = 4 pi(225)
A = (4) x 225pi
A = 2827.43339
