The volume of a right circular cone is 9856cm3. If the diameter of the base is 28 cm, find(i)height of the cone.(ii)slant height of the cone.(iii)Curved surface area of the cone.
Given diameter2r=14⇒r=142
V=9856=13×πr2h
227×1424×h2=9856
h=48cm
Slant height=√r2+h2=√142+482=50cm
curved surface area = πrl=227×14×50
=2200cm2