Multiple choice

The area of curved surface of a cylinder of base radius is $7$cm and height is $25$ cm.

  1. $1100c{m^3}$
  2. $1100c{m^2}$
  3. $1408c{m^2}$
  4. $1408c{m^3}$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The curved surface area of a cylinder is calculated using the formula 2 * pi * r * h. Substituting r = 7 and h = 25, we get 2 * (22/7) * 7 * 25 = 1100. Since this is an area, the unit must be square centimeters (cm^2).

AI explanation

Using the curved surface area of a cylinder formula, which is 2 * pi * r * h, we substitute r = 7 cm and h = 25 cm. This gives 2 * (22/7) * 7 * 25, which simplifies to 44 * 25. The curved surface area is 1100 square cm.

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