Listen NCERT Audio Books to boost your productivity and retention power by 2X.
If the radius of the base of a cone is halved, keeping the height same, what is the ratio of the volume of the reduced cone to that of the original cone?
Let r be the radius of the base and h be the height of the original cone. Then,
Let V2 be the volume of the reduces cone. Then,
Hence ratio of reduce cone to original cone = 1:4