Question

the breadth of rectangle garden is 2/3of its length if its perimeter is 40 m find its dimensions​

Answer 1

Step-by-step explanation:

breadth = 2/3 x (length)

Perimeter= 2(length+breadth) = 40

=length+breadth =20

length=20-breadth

substitute l in the equation

breadth = 2/3 x (length)

breadth = 2/3 x (20-b)

b= 2/3 x (20-b)

3b= 2(20-b)

3b = 40-2b

3b+2b= 40

5b = 40

b= 8 m

to find length substitute b= 8 in equation

8 = 2/3 x (length)

(8x3)= 2(length)

24= 2(length)

12= length

l= 12m