the perimeter of a rectangular sheet is 125cm , breath is 21.4cm what is its length?

2L * 2W = 125 cm.

2L + 2*21.4 = 125
2L + 42.8 = 125
2L = 125-42.8 = 82.2
L = 41.1 cm.

To find the length of the rectangular sheet, we can use the formula for the perimeter of a rectangle:

Perimeter = 2 * (Length + Breadth)

Given that the perimeter is 125 cm and the breadth is 21.4 cm, we can substitute these values into the formula:

125 cm = 2 * (Length + 21.4 cm)

Dividing both sides of the equation by 2 gives:

62.5 cm = Length + 21.4 cm

To isolate the length, we subtract 21.4 cm from both sides of the equation:

Length = 62.5 cm - 21.4 cm

Simplifying, we get:

Length = 41.1 cm

Therefore, the length of the rectangular sheet is 41.1 cm.

To find the length of the rectangular sheet, we can use the formula for the perimeter of a rectangle, which is:

Perimeter = 2(length + width)

Given that the perimeter is 125 cm and the width (breath) is 21.4 cm, we can substitute these values into the equation and solve for the length:

125 = 2(length + 21.4)

First, let's simplify the equation by distributing the 2:

125 = 2length + 2(21.4)

125 = 2length + 42.8

Now, let's isolate the variable (length) by subtracting 42.8 from both sides of the equation:

125 - 42.8 = 2length

82.2 = 2length

Finally, divide both sides of the equation by 2 to solve for the length:

82.2 / 2 = length

Length = 41.1 cm

Therefore, the length of the rectangular sheet is 41.1 cm.