Question 629535
a solid metalic sphere witha radius of 7cm is cut into 4 similar parts of equal volume.what is the total  surface area of each part
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Not enough info.
A simple solution is possible if the cuts are made thru the center of the sphere.  Maybe that's what you mean by "similar."
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If the cuts are by parallel planes, it's more complex but possible.
If the cuts are randomly located, their orientation has to be given.