Question

find the area of metal sheet required to make a pipe with radius 0.07 and length 100​

Answer 1

Answer:

area of sheet = curved surface area of cylinder

CSA Of cylinder is 2 *pie * r * h

2x22/7x0.07x100

44/7x7

=> 44

Answer 2

Given,

The radius of the pipe = 0.07 m

The length of the pipe = 100 m

To Find,

Area of metal sheet required to make a pipe =?

Solution,

We know that pipe is a cylindrical figure and is open on both sides.

Therefore, the area of the metal sheet required =  Curved surface area of the cylinder

The area of the metal sheet required = 2πrh

Putting values of radius and height(Length)

The area of the metal sheet required = 2 * 3.14 * 0.07 * 100

The area of the metal sheet required = 44 m²

Hence, the area of the metal sheet required to make a pipe with a radius of 0.07m and a length of 100​m is 44 m².