Question

From a solid cylinder whose height is 8 em and radius 6 em, a conical cavity
of height 8 em and of base radius 6 em, is hollowed out. Find the volume of
the remaining solid correct to two places of decimals. Also fmd the total surface
area of the remaining solid. (taken = 3.1416)

Answer 1

Answer:

TSA of cylinder - TSA of cone

Answer 2

Answer:

Volume=603.1872

TSA=301.5936

Step-by-step explanation:

VOLUME=PIERSQUAREH - 1/3PIERSQUAREH  

              =288PIE-96PIE

              =192PIE

              =192*3.1416

              =603.1872

TSA= PIE R (R+ L)

      =3.1416*6(6+10)

      =3.1416*6(16)

      =301.5936