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The volume of a sphere equals its surface area only when its radius (in units) equals:

The volume of a sphere equals its surface area only when its radius (in units) equals: Correct Answer 3

Given:

The volume of a sphere equals its surface area only when its radius (in units) equals

Concept used:

Volume of sphere, Surface area of sphere.

Calculation:

Volume of Sphere = 4/3(πr3)

Surface area of sphere = 4πr2

Volume of Sphere = Surface area of sphere

⇒ 4/3(πr3) = 4πr2

⇒ r = 3

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