Multiple choice

The curved surface area of the cylinder is $2\pi r h$ where as surface area of the cylinder is

  1. $\pi r(r+h)$
  2. $\pi rl(r+h)$
  3. $2\pi r(r+h)$
  4. $2\pi r^2l(r+h)$
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C Correct answer
Explanation

The total surface area of a cylinder includes the curved surface area (2 * pi * r * h) plus the areas of the two circular bases (2 * pi * r^2). Summing these gives 2 * pi * r * (h + r).

AI explanation

The total surface area of a cylinder includes the curved surface area plus the areas of its top and bottom circular bases. The curved surface area is 2 pi r h, and the combined area of the two bases is 2 pi r squared. Factoring out 2 pi r gives the total surface area formula 2 pi r (r + h).

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