Given for the cone:
given for the spheres:
Find volume of cone:



Find volume of sphere:


Divide volume of cone by volume of sphere:


Therefore proved 9 such spheres can be made using the metal cone.
We know that volume of cone is



![\sf \rightarrow a = \sqrt[3]{(12936)/(12\pi)}](https://img.qammunity.org/2023/formulas/mathematics/college/lm4elc8fyq3px7oo3qgaielsfml3b9bpfi.png)

Therefore the radius of sphere is 7 cm