Question

the length of the rectangle exceeds it's breadth by 4 m the perimeter of the rectangle is 40 m it's length and breadth are​

Answer 1

Answer:

length = 12 m and breadth = 8 m

Step-by-step explanation:

let the breadth of rectangle = x m

length of rectangle = (x+4) m

peeimeter of rectangle = 2(l + b)

40 = 2(x + 4 + x)

40 = 2(2x + 4)

40 = 4x + 8

40 - 8 = 4x

32 = 4x

x = 8

breadth = 8 m

lenhth = x + 4 = 8 + 4 = 12 m

Answer 2

Answer:

Step-by-step explanation:

Let the breadth be b

And the length be l

Given,l-b=4

l=4+b

Perimeter =40

2(l+b)=40

2(4+b+b)=40

4+2b=20

2b=20-4

b=16\2

b=8

Putting the b =8 in l=4+b we get

l=4+8=12

Hence , length is 12m and breadth is 8m