दाखिल करना

Mathematics for IGCSE & O level - Proportion (Section 1 - No. 19)

If the volume (V) of a sphere is proportional to the cube of its radius (r), which of these equations is correct?

V = kr

V = kr^2

V = kr^3

V = k/r

स्पष्टीकरण

The volume of a sphere is proportional to the cube of the radius means V = kr^3.

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