From a circular cylinder of diameter 16 cm and height 15 cm, a conical cavity of the same base radius and the same height is hollowed out. Find the whole surface area of the remaining solid.
1
342π
2
368π
3
440π
4
356π
From a circular cylinder of diameter 16 cm and height 15 cm, a conical cavity of the same base radius and the same height is hollowed out. Find the whole surface area of the remaining solid.