Mathematics
Grade9
Easy

Question

Find the surface area of the sphere with diameter of 14cm.

  1. 600.06cm2
  2. 804.25cm2
  3. 615.75cm2
  4. 2144.66cm2

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: 615.75cm2


    text  Surface Area  end text equals 4 pi r squared
equals 4 cross times pi cross times 7 squared
equals 196 pi
equals 615.75 text  centimeters  end text squared

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