Perimeter of a triangle Here you will learn how to find the perimeter of a triangle , including what the perimeter is, how to calculate it and how to solve perimeter word problems. Students will first learn how to find perimeter as part of measurement and data in 3rd grade. 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: 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 Learn how to calculate the perimeter of a triangle using the formula P = a + b + c, where a , b, and c are the lengths of the sides. Find out the perimeter of different types of triangles, such as equilateral, isosceles, and scalene, and see examples and problems.

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