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A solid cylinder has total surface area of 462cm². Its curved surface area is one-third of its total surface area. Find the volume of the cylinder.

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Final answer:

The volume of the cylinder is approximately 77.21cm³.

Step-by-step explanation:

Given that the total surface area of the cylinder is 462cm² and the curved surface area is one-third of the total surface area, we can set up the following equation:

CSA = 1/3 * TSA

CSA = 1/3 * 462cm²

CSA = 154cm²

The curved surface area of a cylinder is given by the formula CSA = 2 * π * r * h, where r is the radius and h is the height. Since CSA = 154cm², we can solve for the radius:

154 = 2 * π * r * h

154 = 2 * 3.142 * r * h

154 = 6.284 * r * h

r * h = 24.54

Now, we can calculate the volume of the cylinder using the formula V = π * r² * h:

V = 3.142 * r² * h

V = 3.142 * (24.54/h) * h

V = 3.142 * 24.54

V ≈ 77.21cm³

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