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Find the surface area of a sphere whose diameter is equal to 88 cm.

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  1.  6757π cm2 
  2. 7269π cm2 
  3. 7261π ccm2 
  4. 7744π cm2 

Answer (Detailed Solution Below)

Option 4 : 7744π cm2 
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Detailed Solution

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Given:

Diameter (d) = 88 cm

Radius (r) = d/2 = 88/2 = 44 cm

Formula used:

Surface Area (A) = 4πr2

Calculations:

A = 4π(44)2

⇒ A = 4π(1936)

⇒ A = 7744π cm2

∴ The correct answer is option 4.

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