Question

the length of a rectangular floor is 20 metres more than its breadth the perimeter of the floor is 280m what is its length

Answer 1

length of rectanglular floor is 100m.i hope you mark as brainliest answer

Answer 2

Let b be x.
then,l= x+20
per.=280 m
p=2(l+b)
280=2(x+20+x)
280=2x+40+2x
280=4x+40
240=4x
x=240÷4
x=60
b=60
l=x+20
=60+20
=80