Question

a cylindrical vessel without a l8d is made from a sheet os metal find the area of the metal required if the length of the vessel is 35 cm and its diameter is 28 cm

Answer 1

CSA of cylinder = 2πrh
=> 2× 22/7 × 14 × 35
=> 3080 cm sq

Now, area of the vessel without a lid = TSA of cylinder +πr^2

=> 3080 + 22/7 × 14× 14
=> 3080 + 616 = 3696 cmsq
Hope this helps