Multiple choice

If the volume of a cylinder is 3850 cubic cm and the height is 25 cm, then what is its radius? (Take π = 22/7)

  1. 7 cm

  2. 14 cm

  3. 3.5 cm

  4. 10.5 cm
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A Correct answer
Explanation

Volume = pi * r^2 * h. 3850 = (22/7) * r^2 * 25. r^2 = (3850 * 7) / (22 * 25) = 49. So r = 7.

AI explanation

Using the formula for the volume of a cylinder, V = πr²h, we substitute the given values to get 3850 = (22/7) × r² × 25. Simplifying this gives 3850 = 550r²/7, so r² = 49. Taking the positive square root, the radius is 7 cm.

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