"The   interior of a building is in the form of cylinder of diameter 4.3 m and   height 3.8 m,
Channel: Doubtnut
Date: 2020-06-28

"The
 
  interior of a building is in the form of cylinder of diameter 4.3 m and
 
  height 3.8 m, surmounted by a cone whose vertical angle is a right angle.
 
  Find the area of the surface and the volume of the building. (Take
 
  `pi=3. 14`
 )"