A cone is cut by a plane parallel to its base and upper part is removed.If the curved surface area of the remainder is `15/16` of the curved surface area of the whole cone,find the line-segments into which the cone's height is divided by the plane

A cone is cut by a plane parallel to the base and upper part is removed. If the curved surface area of the remainder frustum is 8/9 of the curved surface area of the whole cone, find the ratio of the line segments into which the cone's height is divided by the plane.

A Hollow cone is cut by a plane parallel to the base and upper portion is removed.If the curved surface of the remainder is 8/9 of the curved surface of the whole cone; find the ration of the line-segment into which the cone's altitude is divided by the plane.

A Hollow cone is cut by a plane parallel to the base and upper portion is removed. If the curved surface of the remainder is 8/9 of the curved surface of the whole cone; find the ratio of the line-segment into which the cone's altitude is divided by the plane.

A hollow cone is cut by a plane parallel to its base and the upper portion is removed. If the curved surface area of the remainder is 8/9 th the curved surface area of the whole cone, find the ratio of line segment into which the cone's altitude is divided by the plane.

A cone is cut by a plane parallel to its base and the upper part is removed.The part that is left over is called

Write the formula to find the curved surface area of a cone

The lateral surface area of a cylinder is equal to the curved surface area of a cone. If their base be the same, find the ratio of the height of the cylinder to slant height of the cone.