Find the surface area of a sphere with a volume of 36π in^3

    Volume of a Sphere = πr³

⇒  πr³  =  36π in³
by comparing the left and right hand side

⇒ r³ = 36

⇒   r = ∛(36 ÷  )
     
      r = 3

Now,
  the surface area of a sphere = 4 πr²
⇒  surface area of a sphere = 4 × (3)² × π
                                             = 36π in²

2,4,5,8,10 are divisible by 40

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