Question

the length of a rectangular field is 20 m more than its breadth.if perimeter of the field is 280 m,what is the length?​

Answer 1

Answer:

The length of the rectangular field is 80m

Answer 2

$x$Answer:

80m

Step-by-step explanation:

Given-

Perimeter = 280m

length = 20+breadth

To find-

Breadth = ?

Lenght = ?

Solution-

For the breadth,

Let the breadth be b

Since we are given that the length of a rectangular field is 20m more than its breadth.

So, we can say that:

Length = 20+b

The formula of a rectangle is 2(length+breadth)
So, 280 = 2(20+b+b)

= 280 = 2(20+2b)

= 280 = 40+4b

= 280-40 = 4b

= 240 = 4b

= 240  = b

     4

= 60 = b

So, breadth is 60m

Therefore, length = 20+b = 20+60 = 80m.

Hence, the lenght of the rectangular field is 80m.

Hope you found this helpful please mark me as brainlist..!