Math, asked by nandanalakshmi, 4 months ago

The length of the rectangle is 4cm more than it's breadth. perimeter of this rectangle is 16cm. what will be the length and breadth of this rectangle
please answer step by step​

Answers

Answered by mk1225673
1

Answer:

Let the breadth of the rectangle be x cm.

Let the breadth of the rectangle be x cm.Then it's length = x+4 cm

Let the breadth of the rectangle be x cm.Then it's length = x+4 cmPerimeter of the rectangle= 2(l+b)

Let the breadth of the rectangle be x cm.Then it's length = x+4 cmPerimeter of the rectangle= 2(l+b)= 2(x+4+x) = 2(2x+4) = 4x + 8 cm

Let the breadth of the rectangle be x cm.Then it's length = x+4 cmPerimeter of the rectangle= 2(l+b)= 2(x+4+x) = 2(2x+4) = 4x + 8 cmBut perimeter of the rectangle = 40 cm

Let the breadth of the rectangle be x cm.Then it's length = x+4 cmPerimeter of the rectangle= 2(l+b)= 2(x+4+x) = 2(2x+4) = 4x + 8 cmBut perimeter of the rectangle = 40 cmSo. 4x + 8 = 40 => 4x = 40 - 8 => 4x = 32

Let the breadth of the rectangle be x cm.Then it's length = x+4 cmPerimeter of the rectangle= 2(l+b)= 2(x+4+x) = 2(2x+4) = 4x + 8 cmBut perimeter of the rectangle = 40 cmSo. 4x + 8 = 40 => 4x = 40 - 8 => 4x = 32=> x = 32/4 => x = 8

Let the breadth of the rectangle be x cm.Then it's length = x+4 cmPerimeter of the rectangle= 2(l+b)= 2(x+4+x) = 2(2x+4) = 4x + 8 cmBut perimeter of the rectangle = 40 cmSo. 4x + 8 = 40 => 4x = 40 - 8 => 4x = 32=> x = 32/4 => x = 8So breadth = 8 cm

Length of the rectangle = x+4 = 8+4=12 cm

Answered by 1200835
3

Step-by-step explanation:

l=x+4

b=x

p=16

16=2×(2x+4)

16=4x+8

16-8=4x

8=4x

8/4=x

2=x

(x+4)=2+4=6

so length is 6cm and breadth is 2cm

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