Question

The length of a rectangular field is 20 m more than its breadth if the perimeter of a field is it to 280 m what is its length​ ? also find the area of a rectangular field.

Answer 1

Step-by-step explanation:

let the breadth of rectangular field be x

b=x l=x+20

P=2(l +b)

280=2(x+20+x)

140=(2x+20)

140-20=2x

120=2x

x=60

b=60m l=60+20

l=80m

area of rectangular field is equal to l into breadth

l × b

60×80

4800m^2