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766

Q:

Three solid metallic sphere whose radii are 3cm, x cm and 18cm respectively, are melted and recast into a single solid sphere of diameter 38cm. Then find the total surface area of the sphere with radius x cm?

  • 1
    300 π
  • 2
    400 π
  • 3
    100 π
  • 4
    200 π
  • Show Answer
  • Workspace

Answer : 2. "400 π "

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