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How to Calculate an Arc's Radius

At least two values must be known in order to calculate the radius of an arc. The chord is the distance from one endpoint of the arc to the other. The arc height is the distance from the chord's midpoint to the highest point on the arc. Once these are...
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Difficulty:
Moderate

Source:
www.ehow.com

en.wikipedia.org/wiki/Arc_(geometry)

[edit]. Using the intersecting chords theorem (also known as power of a point or
secant tangent theorem) it is possible to

www.mathopenref.com/arcradius.html

To

www.handymath.com/cgi-bin/rad2.cgi?submit=Entry

Calculates the

www.handymath.com/cgi-bin/arc18.cgi?submit=Entry

This

www.ajdesigner.com/phpcircle/circle_arc_length_r.php

Geometry

www.radiustrack.com/curved-right-custom-framing/radius-calculator

Purpose: To

www.1728.org/radians.htm

central angle

www.cleavebooks.co.uk/scol/calsect.htm

Where (for brevity) it says '

www.woodweb.com/knowledge_base/Radius_of_an_arc.html

Formulas for

Popular Q&A

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Source:
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How can I calculate cord length using arc length and radius .

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