Multiple choice

A cylinder is formed by folding round a rectangular tin sheet along its length and joining it end to end. The dimensions of the sheet are 44 cm × 20 cm. What is the curved surface area of the cylinder?

  1. 800 cm2

  2. 1000 cm2

  3. 880 cm2

  4. 440 cm2

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The curved surface area of a cylinder formed by rolling a rectangle is equal to the area of the rectangle. Area = 44 cm * 20 cm = 880 cm^2.

AI explanation

Folding a rectangular sheet forms a cylinder whose curved surface area equals the area of the sheet. Using the area of a rectangle formula, we multiply the given length and breadth. This gives 44 cm multiplied by 20 cm, resulting in 880 cm2. The curved surface area is 880 cm2.

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