The perimeter of a triangle is the total distance around the triangle. It is calculated by adding together the lengths of all three sides.
To find the perimeter, you simply use the formula:
Perimeter = Side A + Side B + Side C
For example, if a triangle has sides measuring 3 cm, 4 cm, and 5 cm, you would calculate the perimeter as follows:
Perimeter = 3 cm + 4 cm + 5 cm = 12 cm
This concept applies to all types of triangles, whether they are scalene, isosceles, or equilateral. Understanding the perimeter is essential in geometry for finding boundary lengths and understanding shapes more comprehensively.