Question

Perimeter of a rectangle whose length (L) is 4 cm more than twice its breadth (b) is 14 cm. The pair of linear equations representing the above information is​

Answer 1

Answer:

b

Step-by-step explanation:

l-b=4

2(l+b)=14

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Answer 2

The pair of linear equations are

l = 2b + 4

2 ( l + b ) = 14

Given :

Perimeter of a rectangle whose length (l) is 4 cm more than twice its breadth (b) is 14 cm

To find :

The pair of linear equations representing the above information

Solution :

Step 1 of 3 :

Form the first equation

Length of the rectangle = l cm

Breadth of the rectangle = b cm

Since length (l) is 4 cm more than twice its breadth (b) is 14 cm

So by the given condition

l = 2b + 4

Step 2 of 3 :

Form the second equation

Perimeter of the rectangle

= 2 ( Length + Breadth )

= 2 ( l + b )

Since Perimeter of the rectangle is 14 cm

2 ( l + b ) = 14

Step 3 of 3 :

Write down the pair of linear equations

The pair of linear equations obtained are

l = 2b + 4

2 ( l + b ) = 14

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