Perimeter Formula

The perimeter of various shapes can easily be found using the formula,

Perimeter of Polygon = Sum of All Sides

So, if the sides of any polygon are given then its perimeter can be easily found using the formula discussed above.

Suppose we are given a regular polygon of side n, then its perimeter is calculated using the formula,

Perimeter of Regular Polygon = n × sides

The perimeter formula for some specific figures is,

Perimeter of Square = 4a units

where a is the length of the square

  • A rectangle is a polygon with four sides in which the opposite sides are parallel and equal and the formula for the perimeter of the rectangle is,

Perimeter of Rectangle = 2(l+b) units

where, 

  • l is the length of the rectangle
  • b is the base of the rectangle

  • A triangle is a polygon with three sides it is the simplest polygon possible and the formula for the perimeter of the triangle is,

Perimeter of Triangle = (a+b+c) units

where a, b, and c are the length of the side of the triangle

  • A circle is a curved figure in which the distance of the curve is always fixed from the center of the curve. The perimeter of the circle is also called the circumference of the circle, and the formula to find the circumference of the circle is,

Circumference of Circle = 2πr units

where, r is the radius of the circle.

Perimeter

Perimeter is defined as the sum of all the sides of any polygon. The perimeter of any figure is the sum of the length of all the boundaries of that figure. Perimeter of any figure gives us the length of all the boundaries we can understand this by the following example, suppose we have to find the length of wire required to fence a square then the perimeter of the square field gives the required result as it gives the length of the boundary of the square field.

In this article we will learn about Perimeter, how to calculate the perimeter, various formulas used to calculate the perimeter, examples of the perimeters, and others in detail.

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