The lateral surface area of a hollow cylinder is 4224 cm2. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of rectangular sheet?
Area of Rectangular Sheet = Surface Area of the Cylinder
Area of Rectangle = l x b
⇒ l x b = 4224
⇒ l x 33 = 4224
⇒ l = 128 cm
Perimeter of rectangular sheet = 2( l + b)
= 2 (128 + 33)
= 2 x 161 = 322 cm
Hence perimeter of rectangular sheet is 322 cm.