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Rohan has a solid wax cylinder of diameter 21 cm and height 21 cm from it he curved out a conical cavity of maximum volume from the remaining wax he formed a sphere find the diameter

Posted by Anupama Ann 3 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Vaishnavi Tyagi 3 years, 6 months ago

Radius of largest cone=21/2cm Hieght " " "=21cm Vol. left = vol of cylinder-vol of conical depression = pie r²h-1/3pie r²h =pie r²h(1-1/3) =pie r²h2/3 Volume left =Volume of sphere Pie r²h2/3=4/3pie r³ 21*21*21/2*2*2=r³ Radius =21/2cm Diameter =21cm

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