A cone of height 20cm and radius of base 5cm is made up of modelling clay. A child reshapes it in the form of a sphere. Find the diameter of the sphere.
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volume of clay shall be the same
so,
4/3r^3=5×5×20
r^3. =5×5×5×3
r. =
![\sqrt[3]{3} \times 5](https://tex.z-dn.net/?f=+%5Csqrt%5B3%5D%7B3%7D++%5Ctimes+5 "\sqrt[3]{3} \times 5")
and diameter is just it's double
so,
4/3r^3=5×5×20
r^3. =5×5×5×3
r. =
and diameter is just it's double
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