Question

calculate the CSA of a cylinder whose base radius is 4 cm and height 3cm

Answer 1

csa of cylinder=2πrh
                     =2*22/7*4*3
                    =75.42cm²

Answer 2

C.S.A here means curved surface area, right?? Then, C.S.A=2*[22/7]*4*3=75.4 sq.cm If by any chance C.S.A refers to cross sectional area then... C.S.A=22/7*4^2 =22/7*16~50.28 sq cm