Mathematics
Grade9
Easy

Question

Calculate the surface area of the sphere with radius of 19.6cm

  1. 9160.88cm2
  2. 4827.5cm2
  3. 10305.99cm2
  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: 4827.5cm2


    text  Surface Area  end text equals 4 pi r squared
equals 4 cross times pi cross times 19.6 squared
equals 1536.64 pi
equals 4827.5 text  centimeters  end text squared

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