Multiple choice

What is the volume of hemisphere bowl if its radius is $21\ m$?

  1. $19404\ m^{2} $
  2. $1904\ m^{2} $
  3. $19303\ m^{2} $
  4. $19505\ m^{2} $
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A Correct answer
Explanation

Volume of a hemisphere = (2/3) * pi * r^3. Volume = (2/3) * (22/7) * 21 * 21 * 21 = 2 * 22 * 21 * 21 = 19404 cubic meters.

AI explanation

The volume of a hemisphere is two-thirds pi r cubed. Substituting the given radius of 21 m, we calculate two-thirds times 22/7 times 21 cubed. This simplifies to 2 times 22 times 9 times 441, which equals 19404. The correct unit for volume is cubic meters, making the answer 19404 cubic meters.

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