SOLUTION: The radius of a cylindrical popcorn tin is (3x + 1) in. The height of the tin is three times the radius. What is the surface area of the cylinder? Write your answer in simplified f

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Question 1174943: The radius of a cylindrical popcorn tin is (3x + 1) in. The height of the tin is three times the radius. What is the surface area of the cylinder? Write your answer in simplified form.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

 .

Side Surface = 2π(radius x height)

S = 2pi%2Arh+%2B+2pi%2Ar%5E2

  r = (3x+1)

  h = 3(2x+1)

Side Surface =6π(3x+1)^2

S = 6pi%283x%2B1%29%5E2+%2B+2pi%2A%283x%2B1%29%5E2+=+8pi%283x%2B1%29%5E2