Online calculator. Perimeter of a triangle
This free online calculator will help you to find the perimeter of a triangle.
Using this online calculator, you will receive a detailed step-by-step solution to your problem, which will help you understand the algorithm how to find triangle perimeter.
Calculation of triangle perimeter
Enter length of triangle sides:
Entering data into the perimeter of a triangle calculator
You can input only integer numbers or fractions in this online calculator. More in-depth information read at these rules.
N.B. In online calculator you can use the value in the same units of measurement!
If you have any difficulties with units conversion, you can use the length converter.
Additional features of a triangle perimeter calculator
Theory. Perimeter of a triangle
The perimeter of the triangle∆ABC is the sum of the lengths of its sides:
P = a + b + c
You can input only integer numbers, decimals or fractions in this online calculator (-2.4, 5/7, ...). More in-depth information read at these rules.
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