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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

For this question Lateral surface area(LSA) of cone=area of the sector

=>pi*r1*l=(216/360)*pi*r^2(here l=r=radius of the sector=lateral length of the cone,r1=radius of the cone) solving it we get, =>r1=9 now by pythagoras theorem; r1^2+h^2=l^2 solving it we get =>h=12

so volume =(1/3)*pi*r1^2*h so V=(1/3)*pi*9^2*12 solving it we get V=1017.36cu.cm