Question

The perimeter of a rectangle is 40 cm. The length of The rectangle is less than double its breadth by 1 cm find the length and breadth

Answer 1

Answer:

length=13 , breath =7

Step-by-step explanation:

according to question

breath= b

length= 2b-1

and perimeter=2(l+b)

40 = 2(b+2b-1)

20 = 3b-1

20+1=3b

21/3= b

b = 7

so length = 2×7-1

=13

hope this will help :)

Answer 2

Step-by-step explanation:

p=40

Let breadth =x

so length is 2×x-1 =2x-1

P,of rectangel=2×(L+b)

40=2×(2x-1 + x)

40= (4x-2+2x)

40=(6x-2)

6x =42

x=7

breadth =x=7

Leangth=2×7-1 =13

i hope it will help u