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 . The perimeter of a triangle is the sum of all three sides. Learn the definition, perimeter formulas for different types of triangles with examples. Perimeter of a triangle The perimeter of a triangle is the distance around it, which is the sum of the lengths of its sides. The formula for the perimeter of a triangle is: Perimeter = a + b + c where a, b, and c are the lengths of the three sides of the triangle . Special triangles The perimeter of a triangle is defined as the total length of its boundary. Learn the formula to calculate the perimeter of different types of triangles using solved examples.
