Perimeter of a triangle: The perimeter of a triangle

The perimeter of a triangle is the sum of all three sides. Learn the definition, perimeter formulas for different types of triangles with examples. Learn how to calculate the perimeter of different types of triangles using the formula P = a + b + c, where a , b and c are the side lengths. See solved examples, video lesson and FAQs on perimeter of triangle . Finding the perimeter of a triangle means finding the distance around the triangle . The simplest way to find the perimeter of a triangle is to add up the length of all of its sides, but if you don't know all of the side lengths you will... The perimeter of the triangle = Sum of the lengths of three sides. Let us consider some of the examples on perimeter of a triangle : 1. Find the perimeter of a triangle having sides 3 cm, 8 cm and 6 cm. Solution: