Question

a square of a side is 14 cm folded in the form of hollow cylinder find the radius and height of the cylinder

Answer 1

address of square= CSA of cylinder
=} 14×14 = 2πrh
=} 14×14=2πr14 since the square ise folded
=} r= 14÷2π= (14×7} ÷ {2×22}=2.22cm