Multiple choice

The radius of a right circular cylinder is thrice of its height. If the height of the cylinder is 2.1 cm, then what is the volume of cylinder?

  1. 224.65 cm3

  2. 194.72 cm3

  3. 324.86 cm3

  4. 261.95 cm3
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Given: height h=2.1 cm, radius r=3h=6.3 cm. Volume of cylinder V=πr²h. V=π×(6.3)²×2.1=π×39.69×2.1=83.349π≈261.95 cm³. Using π≈3.1416, we get V≈261.95 cm³.

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