Question

the perimeter of a regtangle is 64 cm. the length of the rectangle is less than 4 by twice its breadth find length and breadth of the rectangle​

Answer 1

Answer:

length=20cm and breadth=12cm

Step-by-step explanation:

perimetre= 2*(length+breadth)

64= 2*(l+b)

l= 2b-4

b=b

64=2*(2b-4+b)

64=4b-8+2b=64

6b=72

so b=12

l=2b-4

so l=20cm

Thanks

Answer 2

Answer:

let length =l , breadth = b

acc to question,

length will be

l= 2b -4

now, perimeter of rectangle= 2(l +b)

64=2(2b-4+b)

64=2(3b-4)

64=6b-8

64+8=6b

72=6b

b=12

and, l = 2b-4

l=2*12-4

l=20