Answers

  • Brainly User
2016-02-23T11:21:46+05:30
So according to the question... volume of both cones=volume of the sphere...so..1/3*π*2.1^2*4.1+1/3*π*2.1^2*4.3=4/3*π*r^3=>1/3*π*r^2(4.1+4.3)=4/3πr^3=>2.1*2.1*8.4=4*r^3=>2.1*2.1*8.4/4=r^3=>2.1*2.1*2.1=r^3=>r=2.1cm(ans)
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