Question

- The Perimeter of rectangle is 180m. If the breadth is 10m less than its length Find l, b​

Answer 1

Answer:

Step-by-step explanation:

as p of triangle = 2(l+b)=180

let l=x

then b = x-10

now,

      180=2(x+x-10)

      180=2(2x-10)

      180=4x-20

      180+20=4x

      200=4x

      x=200/4=50m=length

& bredth=50-10= 40m

Answer 2

Answer:

let the brith is x.cm

length - x+10

perimeter -. 80m

2 (L + B ) - 80 m

L+B - 40