P = a + b + c
you just add the sides together.
Just add up the three sides of the triangle.
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Perimeter of a Triangle is the sum of the sides i.e. a+b+c, where a,b and c are the lengths of the 3 sides of the triangle
It is not in all but a trivial sense - that they are both to do with finding the perimeter!
You multiply the base and the height and then you divide the answers of that by 2. :)
For finding the area of triangle with the help of Heron's formula: [s(s-a)(s-b)(s-c)]1/2 where a,b,c are sides of the triangle and s=1/2 of perimeter of the triangle
The perimeter formula of a triangle is the sum of the lengths of all three sides. Mathematically, it can be expressed as P = a + b + c, where P is the perimeter and a, b, and c are the lengths of the three sides of the triangle.
Perimeter of a triangle = (length of side #1) + (length of side #2) + (length of side #3)