The surface area of a sphere having a diameter of 8 inches is:
A) 25 in squared.
B) 50 in squared.
C) 127 in squared.
D) 201 in squared.
Areasphere = 4 π r2
= (4) (3.1416) (42)
= (4) (3.1416) (16)
= 201.1 rounds to 201 in2
.
+252 
