how to find length and breadth of a rectangle if perimeter is given ? Share with your friends Share 1 Shipra Dang answered this Dear Student, Let the length of the rectangle be xBreadth of the rectangle be yPerimeter, p=2x+ySince, p is given and hence constantSo, p=2x+y is a linear equation in two variables. You have to find solutions of his equation.Therefore, assume values of x natural numbers and find corresponding values of y. Regards, 1 View Full Answer Nirup Nandish answered this There will be many answer to this question. e.g- The perimeter is 18. The length and breath might be- L - B 1)1 - 8 2)2 - 7 3)3 - 6 4)4 - 5 2