Perimeter of Triangle

How to find Perimeter of Triangle? 

The perimeter of Triangle is sum of all its sides . It means perimeter of Triangle is equal to sum of its sides . let, that a, b and c are sides of Triangle then perimeter of triangle = a+b+c.


















Let us consider some of the examples on perimeter of a triangle:


1. Find perimeter of triangle having sides of      3cm , 4cm and 5cm.
    
    Perimeter of triangle= 3+4+5=12cm



2. Find perimeter of triangle ABC where              sides are 6cm , 6cm and 5cm.
     

   Perimeter of triangle= AB +BC+CA= 6+6+5
                                            = 17cm

3.Find the perimeter of an equilateral triangle whose one side is 6 cm.

A triangle in which all the sides are equal is called an equilateral triangle.

Perimeter of the equilateral triangle = 3 × side

                                                    = 3 × 6 cm

                                                    = 18 cm

Thus, perimeter = 18 cm.

4. Find perimeter of triangle whose sides            are 5.5cm , 6cm and 6cm.
   
Perimeter of triangle= 5.5+6+6=17.5cm

5. Find perimeter of shape:


Perimeter of triangle= AB+BC+CD+DA

                    = 4 cm + 4 cm + 4 cm + 4 cm

                    = 16 cm

Note: Don't include diagonal length 





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