Answer :

We know volume of sphere of radius R is


Volume of cone of radius r and height h is

So, Given,

Radius of sphere, R = 10.5 cm

Radius of cone, r = 3.5 cm

Height of cone, h = 3 cm

No of cones can be made by melting sphere

Using formulas, and putting values

No of cones

Hence, 126 cones can be made.

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