Question

How can we find lenght using perimeter and breadth?

Answer 1

Let’s consider an example:
If length of a rectangle is 10 cm and its perimeter is 22 cm, then find its breadth.
Given length, l = 10 cm and perimeter = 22 cm
We know that perimeter of rectangle = 2 (l + b) units
22 = 2(10 + b)
⇒ 10 + b = 11
⇒ b = 1 cm
Hence breadth of the rectangle is 1 cm.
In general, perimeter of rectangle P = 2(l + b)
(P/2) = l + b
⇒ b = (P/2) – l
Using above formula also you can directly find the value of breadth......

Answer 2

2 (l+b)/b====length...hope helps u