The height of the cone is 30 cm. A small cone is cut off at the top by a plane parallel to a base. If itsvolume be 1/27th of the volume of the given cone, at what heoght above the base is the section made?
Given height of the cone = 30 cm
Let the small cone is cut off at a height ‘h’ from the top
Let the radius of big cone be r1 and small cone be r2.
Volume of the big cone,
Let the small cone is cut off at a height ‘h’ from the top
Let the radius of big cone be r1 and small cone be r2.
Volume of the big cone,
