Question

perimeter of a rectangular field is 20m.if length is 5m what will be it's breath​

Answer 1

Step-by-step explanation:

breath will be x

perimeter= length+breath+length+breath

20m=5+x+5+x

20m=10+2x

20-10=2x

10/2=x

x=5

breath will be 5m.

I hope this helps you

Answer 2

Answer:

perimeter of rectangle is 2 (l×b)

20m=2(5×base)

let breath by b

that means 20m = 5+b +5 +b

20m= 10×b2

20-10= b2

10 =b2

so 10 divided by 2

is 5