Question

The length of rectangle is twice its breadth if the perimeter is 90 meters find the length and breadth of the rectanhle​

Answer 1

Step-by-step explanation:

ATQ

l=2b

2(l+b)=90

2(2b+b)=90

2(3b)=90

3b=45

b=45/3

b=15

l=2b=2(15)=30

Answer 2

let breadth =b

length = 2b

perimeter = 2(2b+b)

90= 2(3b)

45= 3b

b=15

length =2b =30

breadth =b=15