Derivation of Perimeter of Rectangle
It is known the rectangle has 4 sides with two equal sides each, let’s consider the length of one side as ‘l’ and the length of the other side as ‘b’. So there will be l, l, and b, b. So, can deduce the formula for perimeter using the definition of perimeter as follows:
As per perimeter definition, sum of all sides is l + l + b + b = 2l + 2b
So take 2 common, Perimeter = 2(l + b)
Therefore,
Perimeter of a rectangle is 2(l + b)
Perimeter of Rectangle
A rectangle is a two-dimensional plane quadrilateral, with opposite sides equal and all four angles equal. The perimeter of a rectangle can be defined as the sum of the length of all four sides in a rectangle.
In this article, we are going to learn how to find the perimeter of rectangles using formulas, with the help of examples.