Arc Length Calculator
Enter a circle's radius and central angle to get the arc length, chord length and sector area instantly, with each step shown. Useful for geometry homework, engineering sketches and construction layout work where accurate curved measurements matter.
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How to use
- Enter the radius.
- Enter the central angle in degrees.
- The arc length, chord and sector area will be shown with steps.
Note: Formula: arc length s = r x theta, where theta is in radians. To convert degrees to radians, multiply by pi / 180.