Question

Find the surface area of the cylinder in terms of PI.

Answer 1

surface area = 2 pi r x r + 2 pi x r x l
2( pi x 9 x 9 ) + 2 pi x 9 x 19
=2 pi x 9 (9 +19)
= 18 x pi (27)
= 486 pi

Answer 2

thats not one of my choices

Answer 3

huh im forgetting additions....

surface area = 2 pi r x r + 2 pi x r x l
2( pi x 9 x 9 ) + 2 pi x 9 x 19
=2 pi x 9 (9 +19)
= 18 x pi (28)
= 504 pi