Mathematics
Grade9
Easy

Question

Find the surface area of the sphere with radius of 7.38cm

  1. 9160.88cm2
  2. 2290.22cm2
  3. 684.42cm2
  4. 82447.96cm2

hintHint:

The Surface area of the sphere is given by  4 cross times straight pi cross times left parenthesis radius right parenthesis squared

The correct answer is: 684.42cm2


    text  Surface Area  end text equals 4 pi r squared
equals 4 cross times pi cross times 7.38 squared
equals 217.8576 pi
equals 684.42 text  centimeters  end text squared

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