Question

a solid cube of side 7cm is melted to make a cone of height 5cm find the radius of the cone

Answer 1

volume of cube =l^3=7x7x7=343 cm^3

A.T.Q

      volume of cube=volume of cone

i.e. 343=πr^2h

343=22/7xr^2x5
343x7/110=r^2
2401/110=r^2
21.82=r^2
4.67=r
thanku :)