Some learning on perimeter

Now am going to write about Perimeter. Let me first define perimeter. Perimeter is the sum of all the sides of a polygon shape.
There are different formulas to finding perimeter of different polygons shapes.

Perimeter of Square:  In square all the sides are equal.
   So Perimeter = 4s
      where s = side length of the square.

Perimeter of a triangle:
In an irregular triangle, the perimeter is P = a + b + c.
Where a , b , and  c are the side lengths of the triangle.
  For an equilateral triangle Perimeter formula is given as  Perimeter = 3 s
 Where s = side length of the triangle.

Perimeter of Rectangle:
  In an regular rectangle opposite sides of the rectangle are always equal.
   Therefore perimeter is calculated using this formula: Perimeter =  2(l + b)
    where l = length and b = breadth of the rectangle.


This is all about perimeter formula for different polygons.