Mathematics, 01.04.2021 06:20, payshencec21

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.

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The radius of a cylindrical popcorn tin is (3x + 1) in. The height of the tin is three times the rad...