What is the surface area of a right cylinder which has a base with radius 9 units and has a height of 12 units?
A) 508.7 units squared
B) 678.2 units squared
C) 1,186.9 units squared
D) 1,256.0 units squared
SA =
2pi *r * h + 2 pi * r^2 =
2pi * r * [ h + r ] =
2 * 3.14 * 9 * [ 12 + 9 ] = 1186.9 units^2
+252 
