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Perimeter of triangle





The perimeter of a triangle is the total length of its boundaries. It is calculated by adding the lengths of all three sides of the triangle. The concept of perimeter is used in various mathematical and real-world applications to determine the boundary length of triangular shapes.

Calculating the Perimeter of a Triangle

To find the perimeter of a triangle, simply add the lengths of its three sides. If the sides are labeled a, b, and c, the perimeter P is given by: P = a + b + c.

Examples of Calculating Triangle Perimeters

Example 1: For a triangle with sides of lengths 5 cm, 6 cm, and 7 cm, the perimeter is 5 + 6 + 7 = 18 cm.

Example 2: If an isosceles triangle has two equal sides of 8 cm each and a base of 6 cm, its perimeter is 8 + 8 + 6 = 22 cm.

Special Considerations

In case of specific triangle types like equilateral or isosceles, knowing one side length or the base and leg lengths can be enough to determine the perimeter, as the equal sides in these triangles simplify the calculation.


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