[tex]433 ft^2[/tex] is the correct answer
area of the circle = 3.14(9) = 28.26
28.26 x 2 = 56.52 which is the surface area of the two end circles
circumference of circle = 3.14(6) = 18.84
18.84 multiplied by 20 will give you surface area of cylinder's body = 376.8
376.8 + 56.52 = 433.32 or 433
