Question

The perimeter of a rectangle sheet is 200 cm. If the length is 40 cm then its breadth will be​

Answer 1

The Perimeter of a rectangle sheet is = 200 cm

It's length = 40 cm

let's the breadth be B

Then, Perimeter= 2(L+ B)

100 = 2(40+B)

100/2 = 40+B

50= 40+B

B= 40/50

= 4/5

Therefore , the breadth is 4/5 cm

Answer.

Hope this helps you. Thank You

Answer 2

Answer:

Given :-

• The perimeter of a rectangular sheet is 200 cm.
• The length of a rectangular sheet is 40 cm.

To Find :-

• What is the breadth of a rectangular sheet.

Formula Used :-

$\clubsuit$ Perimeter of a Rectangle Formula :

$\footnotesize \bigstar \: \: \sf\boxed{\bold{\pink{Perimeter_{(Rectangle)} =\: 2(Length + Breadth)}}}\: \: \: \bigstar$

Solution :-

Let,

$\mapsto \bf Breadth_{(Rectangular\: Sheet)} =\: x\: cm$

Given :

• Perimeter of a rectangular sheet = 200 cm
• Length of a rectangular sheet = 40 cm

According to the question by using the formula we get,

$\implies \bf Perimeter_{(Rectangular\: Sheet)} =\: 200$

$\implies \sf 2(40 + x) =\: 200$

$\implies \sf 40 + x =\: \dfrac{\cancel{200}}{\cancel{2}}$

$\implies \sf 40 + x =\: 100$

$\implies \sf x =\: 100 - 40$

$\implies \sf\bold{\red{x =\: 60\: cm}}$

Hence, the breadth of a rectangular sheet is :

$\dashrightarrow \sf Breadth_{(Rectangular\: Sheet)} =\: x\: cm$

$\dashrightarrow \sf\bold{\red{Breadth_{(Rectangular\: Sheet)} =\: 60\: cm}}$

$\therefore$ The breadth of a rectangular sheet is 60 cm .