write the ratio of volumes of a cylinder, a cone and a hemi sphere with same radii and same heights.

IF A SPHERE IS COMPLETELY IMMERSSED INTO A CYLINDER SUCH THAT IT TOUCHES THE WALL AND BOTTOM OF THE CYLINDER AND THE LID OF THE CYLINDER JUST TOUCHES THE SPHERE INSIDE IT.
WHAT IS THERATIO OF THE CURVED SURFACE AREAS OF THE TWO SOLIDS?

IF THE DIAMETER OF A SOLID CONE IS EQUAL TO ITS SLANT HEIGHT WHICH IS 14 CM IN LENGTH, FIND THE CURVED SURFACE AREA OF THE CONE.