Trigonometry
Chord Length
Chord length from radius and central angle.
Formula
Formula
L = 2 r sin(θ2)
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| r | radius | real number (ℝ) | — | input |
| θ | central angle (deg) | computed result | — | result |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givenradius r = 5, angle θ (deg) = 60
Result5
Example 2
Givenradius r = 10, angle θ (deg) = 90
Result14.14213562