Multiple choice

What is the surface area of a sphere if the radius is $14\ cm$?

  1. $1024\ cm^{2}$
  2. $6032\ cm^{2}$
  3. $2484\ cm^{2}$
  4. $2464\ cm^{2}$
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D Correct answer
Explanation

Surface area of a sphere = 4 * pi * r^2. Using pi = 22/7 and r = 14: 4 * (22/7) * 14 * 14 = 4 * 22 * 2 * 14 = 88 * 28 = 2464.

AI explanation

Using the surface area of a sphere formula, which is 4 times pi times the radius squared, we substitute the given radius of 14 cm. The calculation is 4 multiplied by 22/7 and then by 14 squared, yielding 4 times 22/7 times 196. This results in an area of 2464 square cm.

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