Question

the perimeter of rectangle is 42 cm and its length is double its breadth find the length and breadth of rectangle​

Answer 1

Step-by-step explanation:

Given

Perimeter of rectangle=42 cm

l=2b

b=b

2(l+b)=42

2(2b+b)=42

6b=42

b=7

l=2×7=14

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Answer 2

Answer:

B=7 L=14

Step-by-step explanation:

breadth Will be 7 and Length will be 14

Let x be the breadth of the rectangular shaped field

Therefore, Length = 2x (as it is double of its breadth)

By applying,

Perimeter=2(l+b)=42

=2(2x + x )= 42

=2(3x)=42

=6x= 42

=x=42÷6

x=7