Geometry
Triangle Perimeter
Sum of the three sides.
Formula
Formula
P = a + b + c
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| a, b, c | side lengths | real number (ℝ) | — | input |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givena = 3, b = 4, c = 5
Result12
Example 2
Givena = 7, b = 7, c = 7
Result21