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Does there exist a sphere (or spheres) that has the same surface area and volume? If so, what is the radius of the sphere?

surface area=4πʳ²
volume=4/3πʳ³

User Confiq
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1 Answer

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Final answer:

Yes, there exists a sphere that has the same surface area and volume. The radius of this sphere is 4/3 or approximately 1.333.

Step-by-step explanation:

Yes, there exists a sphere that has the same surface area and volume. This sphere is called a “isodiametric” sphere or a “round cube.”

The formula for the surface area of a sphere is Surface Area = 4πr², and the formula for the volume of a sphere is Volume = (4/3)πr³.

By equating the two formulas and solving for the radius (r), we can find the value of r for the sphere. Let's set the surface area equal to the volume: 4πr² = (4/3)πr³.

After simplification, we have 3r = 4. Dividing both sides by 3, we find that the radius of the sphere is r = 4/3 or approximately r = 1.333.

User Hernan Guzman
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