Question

largest cone is carved out from one face of solid cube of side 21 cm find the volume of the remaining solid

Answer 1

the volume of the cube=21³=9261
the height of the cone =21
the radius =10.5
the volume=1/3*π*r²*h
=1/3*22/7*110.25*21
=1/3*22/7*2315.25
=0.33*3.14*2315.25
=2399.06205
=2340 (approximately)

the remaining=6921