Question

The length of a rectangular field is thrice its breadth if its perimeter is 560 m then it's length is?​

Answer 1

Answer:

length=70 m

imagine length is x then breadth is 3x

so, x+3x+x+3x = 560

8x=560

x= 560÷8

x= 70 m

Answer 2

Answer:

Let, the breadth of the rectangular field be x

So, the length of the rectangular field will be= 3x

Now, we know perimeter of rectangle=2(l+b)

ATP,

2(3x+x)=560. (given perimeter=560m)

2*4x=560

8x=560

x=560/8

x=70

Thus, breadth of the rectangular field is 70m and length is 3*70=210m