Question

A sphere of radius 2r is melted and makes a cone of height then find the radius of the cone ​

Answer 1

Answer:

Let the radius of the cone = R

and Height of a cone = r [Given]

Volume of cone = 1÷3π²h

Now,

Volume of sphere = Volume of cone

=> 4/3π³ = 1²/3h

=> 4r² = r² (r)

=> r²

thus,the radius of the base of cone

=2r