Question

A wire of length 86cm is bent in the form of a ractangle such that its length is 7cm more than its breadth.find the length and breadth of the ractangle so formed

Answer 1

perimeter of a rectangle = 86cm
let breadth of a rectangle = X cm
length of a rectangle = X+7cm
perimeter of a rectangle = 2 ( l + b )
2 ( X+7cm + x cm ). = 86cm
2 ( 2x + 7cm ). = 86cm
4x + 14cm. = 86cm
4x. = 86cm - 14cm
X = 72cm ÷ 4
X. = 18cm
breadth of a rectangle X = 18cm
length of a rectangle X + 7 cm = 18cm + 7cm
= 25cm