Multiple choice

If the volume of sphere is 38,808 cm3 then find its radius?

  1. 15 cm

  2. 21 cm

  3. 14 cm

  4. 28 cm

  5. Cannot be determined
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The volume of a sphere is given by V = (4/3) * pi * r^3. Setting (4/3) * (22/7) * r^3 = 38808, we find r^3 = 38808 * 3 * 7 / (4 * 22) = 9261. Taking the cube root of 9261 gives r = 21 cm.

AI explanation

The volume of a sphere formula is V equals 4 over 3 times pi times r cubed. Setting this equal to 38808, we write 4 over 3 times 22 over 7 times r cubed equals 38808. Solving for r cubed gives 9261, and the cube root of 9261 is 21 cm.

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