Question

a close cylinder tank diameter 14m height 5m made from a sheet how much sheet of metalwill be requrired

Answer 1

total surface area of cylinder = 2πr( r + h )
= 2* 22/7 * 7 ( 7 + 5 )
= 2 * 22 * 12
= 528 cm^2 of sheet will be required
hope this helps :)

Answer 2

TSA of Cylinder = 2 * 22/7 * r (h + r)
                           = 44 * 12 = 528 sq.meter ANSWER.
thanks...