Math, asked by jina44, 4 months ago

The perimeter of a rectangle is 42 cm and its length is double it's breadth.Find the length and breadth of rectangle​

Answers

Answered by usernametaken8
1

Answer:

14 and 7

Step-by-step explanation:

Let the breadth be x

Then, length = 2x

Perimeter = 2(l+b) = 2×(2x+x)

= 6x = 42

=> x = 7 (breadth)

2x= 14 (length)

Answered by ansh102011
1

Answer:

Let it's breadth be x

and it's length be 2x

perimeter of a rectangle= 42cm

2(l+b) =42

2(2x+x)=42

2(3x)=42

3x=42/2

3x=21

x=21/3

x=7

breadth= 7cm

and length= 2×7

14cm

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