Question

find the area of the sheet required to cover both ends of an open cylinder whose curved area is 3080 CM square and height is 35 cm

Answer 1

CSA= 3080cm^2

That is, 2$\pi$rh = 3080cm^2

2*22/7*r*35 = 3080  —>  r=14cm

Area of base=$\pi$r^2 = 616cm^2

Area of sheet required= 616*2 = 1232cm^2