Question

the lateral surface area of a hollow cylundet is 4224 cm sq. .it is cut along its height ,and a rectangular sheet of width 33cm is formed .the perimeter if the rectangle is

Answer 1

Answer:322 cm sq.

Step-by-step explanation:

Lateral surface area of cylinder=area of rectangular sheet obtained=4224 cm sq.

Height of the cylinder=width of the rectangle obtained=33 cm

Area of rectangle =length*width=4224

Or, length*33=4224

length=4224/33=128cm

So perimeter of rectangle obtained =2(length+width)=2(128+33)=2(161)=322cm sq.

Thus the perimeter of the rectangle is 322cm sq.